Special Collections Department
403 Parks Library
Iowa State University
Ames, IA 50011-2140

RS 13/25/51
Paul L. Errington (1902-1962)
Papers, 1929-2008, undated

Descriptive summary

creator:	Errington, Paul Lester (1902-1962)
title:	Papers
dates:	1929-2008, undated
extent:	14.91 linear feet (35 document boxes and 1 half-document box)
collection number:	RS 13/25/51
repository:	University Archives, Special Collections Department, Iowa State University.

Administrative information

access:	Open for research
publication rights:	Consult Head, Special Collections Department
preferred citation:	Paul Lester Errington Papers, RS 13/25/51, Special Collections Department, Iowa State University Library.

Biographical note

Dr. Paul Lester Errington was born June 14, 1902 near Bruce, South Dakota. He earned a B.S. (1930) from South Dakota State College (University). He received his Ph.D. (1932) from the University of Wisconsin.

Dr. Errington joined the Iowa State faculty as a Research Assistant Professor (1932-1938) in zoology to establish and lead the first Cooperative Wildlife Research Unit in the United States. During his years at Iowa State, he was promoted to Research Associate Professor (1938-1948) and to Research Professor (1948-1962). Dr. Errington was considered an international authority on the phenomena of predation and automatic mechanisms of population regulation. His professional area of expertise included vertebrate ecology and population dynamics.

During his lifetime he was a member of numerous professional societies and was awarded the Aldo Leopold Medal in 1962. He wrote more than 200 articles and authored four books. His book Muskrat Populations (1963) was awarded the Iowa State University Press award for faculty publications in 1962.

Dr. Errington married Carolyn Storm in 1934. They raised two sons: Peter and Frederick. Dr. Errington died in 1962.

Collection description

This collection (1906-2008, undated) contains correspondence with numerous colleagues including Durward L. Allen, Marston Bates, Kai Curry-Lindahl, Jay N. Darling, Charles Elton, Ira N. Gabrielson, Joe Hickey, David Lack, A. Starker Leopold, Aldo Leopold, G.W. Malaher, W.L. McAtee, Margaret M. Nice, Lauri Siivonen, Herbert L. Stoddard, and William Vogt. The documents also contain articles, papers and stories, a bibliography of his writings, and manuscripts of books, which include Muskrats and Marsh Management (1961), Muskrat Populations (1963), Of Men and Marshes (1957), Of Predation and Life (1967), and The Red Gods Call (1973). Also in the collection are research and lecture notes pertaining to vertebrate ecology, population dynamics. In addition there are materials regarding the professional organizations to which Dr. Errington belonged including American Ornithologists' Union, Iowa Conservation Commission, Ecology Society, National Audubon Society and the Wildlife Society.

Organization

This collection listing is arranged alphabetically.

Container list

Box	Folder	Title	Dates
32	5	Academic Concerns – Abstracts, reprints, and memoranda of colleagues	undated
32	6 - 8	Academic Concerns – Accounts of departmental and administrative friction at Iowa State	1954-1962
12	7	Academic Concerns – Eastern Lecture Tour	1960
12	3	Academic Concerns – Journal of Wildlife Management – editorial board correspondence	1956-1958
31	7	Academic Concerns – Lectures and talks	undated
31	8	Academic Concerns – Maps of Squaw and Skunk Rivers	undated
31	5 - 6	Academic Concerns – Reports, outlines, National Science Foundation applications, project reports	1929-1962
32	2 - 4	Academic Concerns – Research notes	undated
18	6	Articles – “1934 Drought and Southern Iowa Bob-White”	1935
13	5	Articles – “About a ‘General Practitioner’ the Great Horned Owl”	undated
14	30	Articles – “About those Wild Dogs, the Foxes,” with related correspondence	1953-1954
18	7	Articles – ”Additional Studies on Tagged Young Muskrats”	1944
14	31 - 32	Articles – “American Visitor’s Impressions of Scandinavian Waterfowl Problems,” with related correspondence	1961
14	33 - 34	Articles – “Analysis of Mink Predation Upon Muskrats in North-Central United States,” with related correspondence	1942-1943, undated
18	8	Articles – “Another Winter’s Quail Study”	1933
18	9	Articles – “Banding Studies of Semi-Domesticated Mallard Ducks”	1936
18	10	Articles – “Bob-White Winter Survival on Experimentally Shot and Unshot Areas”	1934
36	1	Articles – “Bob-White Winter Survival in an Area Heavily Populated with Grey Foxes”	1933
13	6	Articles – “Bob-Whitetail Quail on the Northern and Northwestern Frontiers of Its Range”	undated
36	4	Articles – “The Bounty System in Iowa”	1961
18	11	Articles – “Breeding Season of the Muskrat in Northwest Iowa”	1937
13	7	Articles – “Canadian North”	undated
13	8	Articles – “Central Iowa Streams and Associated Habitats”	undated
15	1	Articles – “Closer Look at the Killers,” with related correspondence	undated
13	9	Articles – “Cold”	1929
13	10	Articles – “Comparative Ability of the Bob-Whitetail Quail and the Ring-Necked Pheasant to Withstand Cold and Hunger”	1939
18	12	Articles – “Comparison of Two Iowa Duck Nesting Seasons”	1935
15	4	Articles – “Concerning Fluctuations in Populations of the Prolific and Widely Distributed Muskrat,” with related correspondence	1951
13	11	Articles – “Concerning Limiting Factors in Population of Higher Vertebrates”	1955
15	5 - 6	Articles – “Concerning the Limiting Factors in Populations of the Prolific and Widely Distributed Muskrat,” with related correspondence	1955-1956
18	13	Articles – “Conclusions as to the Food Habits of the Barred Owl in Iowa”	1937
36	5	Articles – “Corn on Cob Saves Wintering Quail”	1930 circa
13	12	Articles – “Cyclic Low”	undated
35	14	Articles – “Decline of the Min Population”	1938
15	7	Articles – “Decline of the Muskrat Population,” with related correspondence	1962-1963
18	15	Articles – “Differences in Nutritive Values of Winter Game Foods”	1936
15	8	Articles – “Disease Cycles in Nature (Epizootiology of a Disease in Muskrats),” with related correspondence	1961
18	16	Articles – “Drowning as a Cause of Mortality in Muskrats”	1937
15	9	Articles – “Ecological Problems Relating to the Northern Bob-White,” with related correspondence	1931-1932
35	15	Articles – “Eight-Winter Study of Central Iowa Bob-Whites”	1941
18	17	Articles – “Emergency Values of Some Winter Pheasant Foods”	1937
18	18	Articles – “Environmental Control for Increasing Muskrat Production”	1948
16	1	Articles – “Esthetics and Wildlife Conservation,” with related correspondence	1937-1938
18	19	Articles – “Evaluation of Nesting Losses and Juvenile Mortality of the Ring-Necked Pheasant”	1937
12	13	Articles – “Experimental Evidence on the Eating of Bob-Whitetail Quail Eggs by Small Sciuridae”	undated
13	14	Articles – “Experimental Tagging of Young Muskrats for Purposes of Study”	undated
18	20	Articles – “Factors Limiting Higher Vertebrate Populations”	1956
13	15	Articles – “Field Studies of Habit Selection in Relation to Mammal and Bird Populations”	1960, undated
36	2	Articles – “Food Habits of a Weasel Family”	1936
18	21	Articles – “Food Habits of Burrowing Owls in Northwestern Iowa”	1935
18	22	Articles – “Food Habits of Buteo Hawks in North-Central United States”	1938
18	23	Articles – “Food Habits of Iowa Red Foxes During a Drought Summer”	1937
18	14	Articles – “Food Habits of Marsh Hawks in the Glaciated Prairie Region of North-Central United States”	1936
18	24	Articles – “Food Habits of Midwest Foxes”	1935
18	26	Articles – “Food Habits of Southern Wisconsin Raptors”	1932-1933
18	25	Articles – “Food Habits of the Red Fox in Iowa”	1937
13	16	Articles – “Food Habits Study of Foxes”	1932, undated
18	27	Articles – “Foods of the Bob-White in Wisconsin”	1939
13	17	Articles – “Glacial Marshes”	undated
35	23	Articles – “Great Horned Owl and It’s Prey in North Central United States”	1940
18	28	Articles – “Great Horned Owl as and Indicator of Vulnerability in Prey Populations”	1938
16	2 - 3	Articles – “Great Horned Owl,” with related correspondence	1939-1940
35	16	Articles – “Habitat Requirements of Stream Dwelling Muskrats”	1937
13	18	Articles – “How Much Do Quail Move”	undated
16	4	Articles – “In Appreciation of Aldo Leopold,” with related correspondence	1948
13	19	Articles – “In Defense Not of Gobbledygook, but of Workable Standards in Technical Writing”	1952, undated
13	20	Articles – “Innocence”	1936, undated
13	21	Articles – “Integration of Wildlife Management with the Soil Bank Program”	undated
18	29	Articles – “Iowa Duck Studies”	1934
13	22	Articles – “Iowa Marsh” (original title for “Of Birds and a Marsh and Thirty Years”	undated
13	23	Articles – “Life’s Resilience and the Balance of Nature”	undated
13	24	Articles – “Long-Eared Owl as a Ratter”	1933
16	5	Articles – “Lost Legions,” with related correspondence	1933
35	17	Articles – “Management of Red Fox in Iowa”	1937
18	30	Articles – “Management of the Bob-White Quail in Iowa”	1933
18	31	Articles – “Marsh Hawk and Its Hunting”	1938 circa
13	25	Articles – “Mink Feces”	1933
13	26	Articles – “Misappraisal”	undated
35	18	Articles – “Mobility of the Northern Bob-White as Indicated by Banding Returns”	1933
16	6	Articles – “Modern Science and Predators,” with related correspondence	1938
18	32	Articles – “Modifications in Predation Theory Suggested by Ecological Studies of the Bob-White Quail”	1938
13	27	Articles – “Muskrat Ramblings”	undated
18	33	Articles – “Muskrats in Corn”	1940
18	34	Articles – “Natural Restocking of Muskrat Vacant Habitats”	1940
18	35	Articles – “Nesting and the Life Equation of the Wisconsin Bob-White”	1933
13	28	Articles – “No Quarter”	1938, undated
13	29	Articles – “Norrtälje Skärgåden – Where the Land Comes out of the Sea”	undated
16	7	Articles – “North Country,” with related correspondence	undated
16	8 - 9	Articles – “Northern Bob White,” Ph.D. Thesis from University of Wisconsin	1932
35	19	Articles – “Northern Bob-White’s Winter Territory"	1936
36	3	Articles – “Notes on Winter-Killing of Central Iowa Bob-Whites”	1941
36	6	Articles – “Objectives in Civil Service”	1941
13	30	Articles – “Observations on a Fungus Skin Disease of Iowa Muskrats”	1942, undated
18	36	Articles – “Observations on Muskrat Damage to Corn and Other Crops in Central Iowa”	1938
13	31	Articles – “Observations on Predation of Wasps Upon Beetle Larvae”	undated
18	37	Articles – “Observations on the Effects of a Spring Drought on Reproduction in the Hungarian Partridge”	1938
18	38	Articles – “Observations on Young Muskrats in Iowa”	1939
14	1	Articles – “Of Concepts and Conceits – an Essay on Anthropocentrisms”	undated
14	2	Articles – “Of Lynx and a White Cedar Swamp”	undated
16	10	Articles – “Of Man and the Lower Animals,” with related correspondence	1941-1960
16	11	Articles – “Of Population Cycles and Unknowns,” with related correspondence	1957-1958
18	39	Articles – “On the Analysis of Productivity in Populations of Higher Vertebrates”	1942
14	3	Articles – “On the Effects of Acute Emergencies on Animal Populations”	undated
17	1	Articles – “On the Hazards of Overemphasizing Numerical Fluctuations in Studies of ‘Cyclic’ Phenomena in Muskrat Populations,” with related correspondence	1954
18	40	Articles – “On the Social Potentialities of Wildlife Management”	1940
34	6	Articles – “Over-Populations and Predation: a Research Field of Singular Promise"	1935
34	7	Articles – “Pellet Analysis Method of Raptor Food Habits Study”	1930
17	2	Articles – “Pheasant in the Northern Prairie States,” with related correspondence	1942
17	3	Articles – “Phenomena of Predation,” with related correspondence	1963
14	4	Articles – “Population Recovery of the Muskrat” (abstract)	undated
17	5 - 8	Articles – “Predation and Vertebrate Populations,” with related correspondence	1946
34	8	Articles – “Predators and the Northern Bob-White”	1935
14	5	Articles – “Preface to Teaching Unit 5: Owls”	undated
17	4	Articles – “Pricelessness of Untampered Nature,” with related correspondence	1962-1963
34	9	Articles – “Publication Standards in Wildlife Management”	1939
14	6	Articles – “Quail Appreciate Brush Piles”	undated
14	7	Articles – “Quail Do Not Need to Have Their Corn Cracked”	undated
14	9	Articles – “Quail Having it Easy This Winter”	undated
14	8	Articles – “Quail Like Edges”	undated
34	10	Articles – “Quail Winter Food and Cover”	1931
14	10	Articles – “Queer”	undated
15	2 - 3	Articles – “Question of Values,” with related correspondence	1947, undated
14	11	Articles – “Quotations for Science Service from ‘Population Recovery of Muskrat”	undated
34	11	Articles – “Reactions of Muskrat Populations to Drought”	1939
14	12	Articles – “Redheads and Realities”	1962
34	12	Articles – “Reduction in Productivity of Muskrat Pelts on an Iowa Marsh Through Depredations of Red Foxes”	1945
14	13	Articles – “Rovdyrene Og Deres Virkninger” (Danish)	1960
14	14	Articles – “Saprolengnia Parasitica and Bacillus Columnaris; Their Relation to Disease in Fish”	undated
17	9	Articles – “Scanian Wetlands,” with related correspondence	1962
36	7	Articles – “Significance of Food Habits Research in Wildlife Management”	1935
18	2	Articles – “Some Contributions of Fifteen Year Local Study of the Northern Bob-White to a Knowledge of Population Phenomena,” with related correspondence	1945
34	14	Articles – “Special Report on Muskrat Disease”	1946
18	3	Articles – “Special Responsiveness of Minks to Epizootics in Muskrat Populations,” with related correspondence	1954
34	15	Articles – “Studies on the Behavior of the Great Horned Owl”	1932
34	13	Articles – “Suggestions as to Nesting Studies on Iowa Game Birds”	1945
34	16	Articles – “Suggestions for Appraising Effects of Predation on Local Areas Managed for Bob-White”	1939
14	15	Articles – “Suggestions for Appraising Predator Control”	undated
14	16	Articles – “Summary of Studies of Animal Populations, Prairie du Sac, Wisconsin, 1929-1944” (written with Aldo Leopold)	undated
17	10	Articles – “Summary of Studies of Bob-White Population Near Prairie du Sac, Wisconsin, 1929-1943,” with related correspondence and research data (1of 2)	undated
18	1	Articles – “Summary of Studies of Bob-White Population Near Prairie du Sac, Wisconsin, 1929-1943,” with related correspondence and research data (2 of 2)	undated
35	20	Articles – “Summer Bob-White Observations in a City Backyard”	1933
34	17	Articles – “Summer Food Habits of the Badger in Northwestern Iowa”	1937
14	17	Articles – “Survey of Rat Populations in Urban and Rural Areas and Development of Better Techniques of Estimating Rat Populations”	undated
34	18	Articles – “Tagging Studies of Red Foxes”	1937
18	4	Articles – “Talon and Fang,” with related correspondence	1962-1964, undated
35	21	Articles – “Technique of Raptor Food Habits Study”	1932
14	18	Articles – “Ten Rounds”	n.d
35	22	Articles – “Territory Disputes of Three Pairs of Nesting Marsh Hawks”	1930
34	19	Articles – “To Babes Really Lost in the Woods”	1944
14	19	Articles – “To the Memory of a Young Man” [see also correspondence with Arthur Gilkey]	1960
14	20	Articles – “To What is Gone”	undated
18	5	Articles – “Towards a Better Understanding of Animal Life,” with related correspondence	1956
14	21	Articles – “Triangle, a Story”	1953
14	22	Articles – “Utmost Height”	undated
14	23	Articles – “Valedictory, a Story”	undated,
34	20	Articles – “Versatility in Feeding and Population Maintenance of the Muskrat”	1941
34	21	Articles – “Vulnerability of Bob-White Populations to Predation”	1934
14	24	Articles – “Wary Ones”	1962
34	22	Articles – “What Counts in Northern Bob-White Management”	1935
14	25	Articles – “What Do We Really Know About the Balance of Nature”	undated
14	26	Articles – “What is the Meaning of Predation”	1936
34	23	Articles – “Wildlife Management – an Integration of Ends in Land Use”	1932
34	24	Articles – “Wildlife Research as a Profession”	1934
14	27	Articles – “Winter Carrying Capacity of Marginal Ruffed Grouse Environment in North-Central United States”	1937
34	25	Articles – “Winter Carrying Capacity of Marginal Ruffed Grouse Environment in North-Central United States”	1937
34	26	Articles – “Winter of 1934-1935 and Iowa Bob-Whites”	1936
14	28	Articles – “Wintering of Field-Living Norway Rats in South Central Wisconsin”	1935
34	27	Articles – “Wintering of the Wisconsin Bob-White”	1933
14	29	Articles – “You Sell Part of Your Life, a Story”	undated
35	24	Articles – Bob-White publications (bound articles)	1933-1945
36	1	Articles – Muskrat publications (bound articles)	1937-1954
Map Case		Biographical information – Certificates of membership to professional societies and awards (oversized)	1931, 1955
32	9	Biographical information – Certificates of membership to professional societies and awards	1931-1962
12	6	Biographical information – Congratulatory letters regarding the Aldo Leopold Medal, Iowa State University Press Award, and the Life Magazine article	1962, undated
35	1	Biographical information – Errington Marsh dedication	2000
35	2	Biographical information – news clipping, news releases, and memorials	1957-2008, undated
35	3	Biographical information – Paul Errington Memorial Lecture – programs, news clippings, and lectures	1962-2000, undated
35	4	Biographical information – Paul Errington presentation at the 1991 Iowa Academy of Sciences Meeting	1989-1991
35	5	Biographical information – personnel questionnaires and resumes	1948-1955
35	6	Biographical information – photographs of Errington (3 2x3”, 1 3x5”, 2 5x7” B&W)	1949-1958, undated
32	10	Biographical information – Photographs of Errington in the marsh (13 5x7” B&W)	1952-1955
35	7	Biographical information – reports of activities, applications for grants, and general information	1956-1960, undated
23	8	Book – Muskrat Populations, correspondence	1951-1961
27	4 - 5	Book – Muskrat Populations, manuscript, corrected copy, appendix	1959
27	6	Book – Muskrat Populations, manuscript, corrected copy, bibliography	1959
26	3	Book – Muskrat Populations, manuscript, corrected copy, chapters 1-3	1959
26	4	Book – Muskrat Populations, manuscript, corrected copy, chapters 4-6	1959
26	5	Book – Muskrat Populations, manuscript, corrected copy, chapters 7-8	1959
26	6	Book – Muskrat Populations, manuscript, corrected copy, chapters 9-10	1959
26	7	Book – Muskrat Populations, manuscript, corrected copy, chapters 11	1959
26	8	Book – Muskrat Populations, manuscript, corrected copy, chapters 12	1959
27	1	Book – Muskrat Populations, manuscript, corrected copy, chapters 13	1959
27	2	Book – Muskrat Populations, manuscript, corrected copy, chapters 14-15	1959
27	3	Book – Muskrat Populations, manuscript, corrected copy, chapters 16-17	1959
27	7	Book – Muskrat Populations, manuscript, corrected copy, illustrations	1959
24	7	Book – Muskrat Populations, manuscript, final typist copy, chapters 1-4	1958
24	8	Book – Muskrat Populations, manuscript, final typist copy, chapters 5-7	1958
25	1	Book – Muskrat Populations, manuscript, final typist copy, chapter 8	1958
25	2	Book – Muskrat Populations, manuscript, final typist copy, chapter 9	1958
25	3	Book – Muskrat Populations, manuscript, final typist copy, chapters 10-11	1958
25	4	Book – Muskrat Populations, manuscript, final typist copy, chapters 12	1958
25	5	Book – Muskrat Populations, manuscript, final typist copy, chapters 13	1958
25	6	Book – Muskrat Populations, manuscript, final typist copy, chapter 14	1958
25	7	Book – Muskrat Populations, manuscript, final typist copy, chapters 15-16	1958
25	8	Book – Muskrat Populations, manuscript, final typist copy, chapters 17	1958
25	9	Book – Muskrat Populations, manuscript, final typist copy, chapters 18-19	1958
26	1	Book – Muskrat Populations, manuscript, final typist copy, chapters 20	1959
26	2	Book – Muskrat Populations, manuscript, final typist copy, chapters 21-22	1959
23	9	Book – Muskrat Populations, manuscript, incomplete	1958
24	1 - 6	Book – Muskrat Populations, manuscript, incomplete	1958
29	1 - 2	Book – Muskrat Populations, manuscript, printer’s copy, appendices	1962
27	8	Book – Muskrat Populations, manuscript, printer’s copy, chapters 1-2, index, captions for illustrations and charts	1962
28	1	Book – Muskrat Populations, manuscript, printer’s copy, chapters 3-5	1962
28	2	Book – Muskrat Populations, manuscript, printer’s copy, chapters 6-7	1962
28	3	Book – Muskrat Populations, manuscript, printer’s copy, chapters 8	1962
28	4	Book – Muskrat Populations, manuscript, printer’s copy, chapters 9	1962
28	5	Book – Muskrat Populations, manuscript, printer’s copy, chapters 10	1962
28	6	Book – Muskrat Populations, manuscript, printer’s copy, chapters 11	1962
28	7	Book – Muskrat Populations, manuscript, printer’s copy, chapters 12-13	1962
28	8	Book – Muskrat Populations, manuscript, printer’s copy, chapters 14-15	1962
28	9	Book – Muskrat Populations, manuscript, printer’s copy, chapters 16-17	1962
29	3	Book – Muskrat Populations, manuscript, printer’s copy, miscellaneous revised pages	1962
29	4	Book – Muskrat Populations, manuscript, printer’s copy, tag ends of book	1962
23	2	Book – Muskrats and Marsh Management, chapter V	undated
22	4 - 5	Book – Muskrats and Marsh Management, manuscript copy 1 (typed by Carolyn S. Errington)	undated
22	6 - 7	Book – Muskrats and Marsh Management, manuscript copy 2	1956
22	8 - 9	Book – Muskrats and Marsh Management, manuscript copy 3, typists copy	1957
22	10	Book – Muskrats and Marsh Management, manuscript copy 4, with front pieces and figures (1 of 2)	1957
23	1	Book – Muskrats and Marsh Management, manuscript copy 4, with front pieces and figures (2 of 2)	1957
23	6 - 7	Book – Muskrats and Marsh Management, manuscript copy 5 and printer’s copy	1961
23	5	Book – Muskrats and Marsh Management, original illustrations	undated
23	3 - 4	Book – Muskrats and Marsh Management, preface and acknowledgments	undated
19	1 - 2	Book – Of Men and Marshes correspondence and purpose of book’s promotion	1952-1958
21	3 - 5	Book – Of Men and Marshes final typists copy before submitting	undated
19	7	Book – Of Men and Marshes manuscript in longhand, chapter X	undated
19	6	Book - Of Men and Marshes manuscript in longhand, original typist copy, chapter IX and draft of chapter X	undated
19	3 - 4	Book – Of Men and Marshes manuscript in longhand, original typist copy, preface through chapter V and drafts	undated
19	5	Book – Of Men and Marshes manuscript in longhand, original typist copy, chapter VI-VII	undated
20	1 - 2	Book – Of Men and Marshes near final copy	1954
20	3	Book – Of Men and Marshes parts of original or early version	undated
21	6 - 8	Book – Of Men and Marshes printers copy of manuscript	undated
20	4 - 5	Book – Of Men and Marshes revision	1955
20	7	Book – Of Men and Marshes reworked copy late November (1 of 2)	1955
21	1	Book – Of Men and Marshes reworked copy late November (2 of 2)	1955
21	2	Book – Of Men and Marshes reworked part early October	1956
20	6	Book – Of Men and Marshes reworked version, chapters I-V and VII	1955
21	9 - 10	Book – Of Men and Marshes second copy	undated
22	3	Book – Of Men and Marshes second galley proof	1957
22	1 - 2	Book – Of Men and Marshes typewritten copy	undated
29	5	Book – Of Predation and Life, manuscript, copy 1 chapters 1-3 and preface	undated
29	6	Book – Of Predation and Life, manuscript, copy 1 chapters 4-7	undated
29	7	Book – Of Predation and Life, manuscript, copy 1 chapters 8-11	undated
30	1	Book – Of Predation and Life, manuscript, copy 2 chapters 1-7 (corrections by Carolyn S. Errington)	undated
30	2	Book – Of Predation and Life, manuscript, copy 2 chapters 8-13 (corrections by Carolyn S. Errington)	undated
30	5	Book – Of Predation and Life, manuscript, copy 3 chapters 12-13	undated
30	3	Book – Of Predation and Life, manuscript, copy 3 chapters 1-7	undated
30	4	Book – Of Predation and Life, manuscript, copy 3 chapters 8-11	undated
31	3	Book – Of Predation and Life, printer’s copy, chapter 13, index	undated
30	8	Book – Of Predation and Life, printer’s copy, chapters 1-4	undated
31	1	Book – Of Predation and Life, printer’s copy, chapters 5-8	undated
31	2	Book – Of Predation and Life, printer’s copy, chapters 9-12	undated
31	4	Book – Of Predation and Life, reviews of book	undated
30	7	Book – Of Predation and Life, reworked parts	1961
30	6	Book – Of Predation and Life, reworking of chapter 6 and 7	1962
33	1 - 2	Book – Red Gods Calling – manuscript	undated
34	3 - 5	Book – Red Gods Calling – proofreader’s copy with corrections	undated
33	3 - 8	Book – Red Gods Calling – revisions	undated
34	1 - 2	Book – Red Gods Calling – revisions	undated
32	1	Book – Of Wilderness and Wolves, rejections on	undated
13	6	Correspondence – About wildlife diseases, especially for muskrats	1933-1955
11	1	Correspondence – Carolyn Errington	1960-1962
11	3	Correspondence – Carolyn Errington	1963-1964, undated
11	2	Correspondence – Carolyn Errington, January-March	1963
35	9	Correspondence – Carolyn Errington, poem “Power Politics”	undated
35	8	Correspondence – Carolyn Errington, regarding Paul Errington’s career	2000
11	5 - 7	Correspondence – Conservation Commission (Iowa),includes correspondence with Jay N. Darling (1933-1934)	1932-1951
35	10	Correspondence – general	1933-1961
1	1	Correspondence – incoming, Ab-Am	1936-1962
1	2	Correspondence – incoming, An-Ay	1936-1962
1	3	Correspondence – incoming, Ba-Bi	1933-1956
1	4	Correspondence – incoming, Bi-Bo	1936-1961
1	5	Correspondence – incoming, Br-Bu	1936-1961
1	6	Correspondence – incoming, Ca-Cl	1937-1961
1	7	Correspondence – incoming, Co-Cu	1935-1936
2	1 - 2	Correspondence – incoming, Curry-Lindahl, Kai (ca. 68 items)	1954-1962
2	3	Correspondence – incoming, Da-De	1934-1936
2	4	Correspondence – incoming, De-Dy	1932-1959
2	5	Correspondence – incoming, Ea-Ev	1937-1960
2	6	Correspondence – incoming, Fa-Fu	1938-1962
2	7	Correspondence – incoming, Ga-Go	1932-1962
2	8	Correspondence – incoming, Gr-Gu	1930-1960
3	1 - 2	Correspondence – incoming, Ha	1932-1959
3	3	Correspondence – incoming, He-Ho	1935-1961
3	4	Correspondence – incoming, Ho	1932-1961
3	5	Correspondence – incoming, Hu	1931-1961
3	6	Correspondence – incoming, In-Ir	1938-1955
3	7	Correspondence – incoming, Ja-Ju	1936-1962
3	8	Correspondence – incoming, Ka-Ki	1932-1960
3	9	Correspondence – incoming, Ki-Ku	1940-1962
4	4	Correspondence – incoming, La-Li	1934-1961
4	1 - 3	Correspondence – incoming, Leopold, Aldo (ca. 325 items)	1930-1948
4	5	Correspondence – incoming, Li-Lu	1934-1961
5	2	Correspondence – incoming, Ma	1945-1960
4	6 - 8	Correspondence – incoming, McAtee, W.L. (ca. 170 items)	1930-1958
5	1	Correspondence – incoming, Mc-Ma	1939-1962
5	3	Correspondence – incoming, Me-My	1936-1960
5	4	Correspondence – incoming, Na-Ny	1931-1959
5	5	Correspondence – incoming, Oa-Os	1934-1961
5	6	Correspondence – incoming, Pa-Py	1937-1962
5	7	Correspondence – incoming, Que-Quo	1948-1958
5	8	Correspondence – incoming, Ra-Ry	1936-1962
6	1	Correspondence – incoming, Sa-Sch	1943-1962
6	2	Correspondence – incoming, Sco-Sii	1936-1962
6	3	Correspondence – incoming, Sil-Sp	1932-1961
6	4	Correspondence – incoming, Sta-Sti	1936-1931
6	5	Correspondence – incoming, Stoddard, Herbert L.	1929-1941
6	6	Correspondence – incoming, Storer-Sy	1937-1962
6	7	Correspondence – incoming, Ta-Tu	1936-1962
6	8	Correspondence – incoming, Ud-Un	1940-1962
6	9	Correspondence – incoming, Va-Vow	1937-1961
6	10	Correspondence – incoming, Wa-Wi	1936-1962
7	1	Correspondence – incoming, Wi-Wu	1940-1962
7	2	Correspondence – incoming, Ye-Yu	1934-1961
7	3	Correspondence – incoming, Zi-Zw, miscellaneous	1946-1959
7	9 - 10	Correspondence – outgoing	1937
7	4	Correspondence – outgoing	1930-1932
7	5	Correspondence – outgoing	1933
7	6	Correspondence – outgoing	1934
7	7	Correspondence – outgoing	1935
7	8	Correspondence – outgoing	1936
8	2	Correspondence – outgoing	1939
8	3	Correspondence – outgoing	1940
8	4	Correspondence – outgoing	1941
8	5	Correspondence – outgoing	1942
8	6	Correspondence – outgoing	1943
8	7	Correspondence – outgoing	1944
8	8	Correspondence – outgoing	1945
8	9	Correspondence – outgoing	1946
8	10	Correspondence – outgoing	1947
9	2	Correspondence – outgoing	1949
9	3	Correspondence – outgoing	1950
9	4	Correspondence – outgoing	1951
9	5	Correspondence – outgoing	1952
9	6	Correspondence – outgoing	1953
9	7	Correspondence – outgoing	1954
9	8	Correspondence – outgoing	1955
9	9	Correspondence – outgoing	1956
10	5 - 6	Correspondence – outgoing	1961
10	1	Correspondence – outgoing	1957
10	2	Correspondence – outgoing	1958
10	3	Correspondence – outgoing	1959
10	4	Correspondence – outgoing	1960
11	7 - 8	Correspondence – outgoing	1962
7	11	Correspondence – outgoing (1 of 2)	1938
8	11	Correspondence – outgoing (1 of 2)	1948
8	1	Correspondence – outgoing (2 of 2)	1938
9	1	Correspondence – outgoing (2 of 2)	1948
13	1 - 2	Correspondence – requests for recommendations	1935-1957
35	11	Correspondence – with Harold R. Peasley	1938-1942
36	8	Iowa Boat Registration Applications	1975-1983, undated
12	4 - 5	Miscellaneous editorial work	1934-1962
35	13	Research notes – Cumberland Rat Marsh	1948
35	12	Research notes (3 3x5” B&W photographs)	undated
11	4	Societies – American Ornithologists Union (AOU), nominations for elective members and fellows and repots from the Committee on Bird Protection	1943-1961
11	9	Societies – Ecology Society Editorial of America, Board, outgoing correspondence	1934-1951
11	8	Societies – Ecology Society of America, Editorial Board, incoming correspondence	1934-1951
11	10	Societies – National Audubon Society	1935-1954
11	11	Societies – The Wildlife Society, statements on standards, policies, and procedures	1938-1939
12	1 - 2	Societies – The Wildlife Society, statements on standards, policies, and procedures	1940-1951