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Louis G. Gentner Papers, 1829-1980

By Finding aid prepared by Faye Harkins; updated by Elizabeth Nielsen.

Collection Overview

Title: Louis G. Gentner Papers, 1829-1980

Predominant Dates: 1914-1980

ID: MSS Gentner

Primary Creator: Gentner, Louis G. (1892-1980)

Extent: 2.2 cubic feet. More info below.

Arrangement: This collection is organized into six series: 1. Biographical Information; 2. Correspondence; 3. School Records and Materials; 4. Entomology Field Work and Research Notes; 5. Organizations; and 6. Photographs.

Languages of Materials: English [eng]


These papers were generated by Louis G. Gentner, entomologist, alumnus and faculty member at Oregon State College. They document his coursework at Oregon Agricultural College, species identification and his field research regarding insect damage to vegetation.

Scope and Content Notes

The Gentner Papers document the entomological research conducted by Gentner, primarily on flea beetles, as well as his professional activities and undergraduate and graduate education. The collection includes correspondence, class notebooks, publications, extensive field and research notes, and photographs.

Biographical / Historical Notes

Alumnus and entomologist, Louis G. Gentner, was born in Portland, Oregon, in February 1892. Gentner received his B. S. from Oregon Agricultural College in 1915, his M. S. from the University of Wisconsin in 1918, and completed his doctorate at Oregon State College in 1953. He did his post-graduate work at Oregon State College in 1945 and 1946. After working as an entomologist in Wisconsin and Michigan, he became associate entomologist and assistant superintendent of the Southern Oregon Branch Experiment Station in Medford in 1930. Gentner's studies with alfalfa varieties led to the selection and naming of "Talent" alfalfa, now grown extensively for seed production exports. His work with beetles led to the elimination of the Klamath goat weed infestation on southern Oregon infested rangeland and enabling thousands of acres to be become viable again. Gentner retired from the station in 1962 and died July 16, 1980. Additional biographical information is included in the collection.

Administrative Information

More Extent Information: 100 photographs; 8 boxes

Statement on Access: Collection is open for research.

Related Materials: Other materials relating to the Entomology Department can be found in the Agricultural Experiment Station Records (RG 025) and Entomology Department Records (RG 027). Other entomological collections held by the OSU Special Collections and Archives Research Center are the papers of Ralph Berry Papers (MSS Berry), John D. Lattin Papers (MSS Lattin), Merton Lane Papers (MSS Lane), Charles H. Martin Papers (MSS MartinC), James McIver Papers (MSS McIver), Hugh E. Morrison Papers (MSS Morrison), Paul W. Oman Papers (MSS Oman), Paul Ritchter Papers (MSS Ritchter), Robert G. Rosenstiel Papers (MSS Rosenstiel), and Herman A. Scullen Papers (MSS Scullen) and the A.B. Cordley Entomological and Horticultural Scrapbook (MSS Cordley). Materials relating to Gentner's research on flea beetles are held by the Smithsonian Institution Archives (Louis G. Gentner Papers, RU 7341).

Preferred Citation: Louis G. Gentner Papers (MSS Gentner), Oregon State University Special Collections and Archives Research Center, Corvallis, Oregon.


Gentner, Louis G. (1892-1980)

People, Places, and Topics

Beneficial insects.
Entomology--Study and teaching (Higher)--Oregon.
Gentner, Louis G., 1892-1980
History of Science
Natural Resources
Oregon Agricultural College
Oregon State University. Department of Entomology
University History

Forms of Material

Nitrate negatives.
Photographic prints.

Box and Folder Listing

Series 1: Biographical Information, 1926-1979
Series I consists of a list of Gentner's publications and a biographical data sheet.
Box-Folder 1.1: Biographical Information and List of Publications of Louis G. Gentner, 1926-1969
Box-Folder 1.2: Entomological Publications, 1949-1979
Series 2: Correspondence, 1929-1978
Series II contains both professional correspondence relating to Gentner's Ph.D. thesis, coursework for students and entomological correspondence pertaining to specimen identification and supplies. Much of the correspondence relates to Gentner's work on his Ph.D. at Oregon State College.
Box-Folder 1.3: Letters from Mont. A. Casier and Paul O. Ritcher, 1955 and undated
Box-Folder 1.4: Letters regarding Gentner's Ph.D. thesis, 1951-1953
Box-Folder 1.5: Information and Procedures for Graduate Students and County Extension Agents Seeking Master Degrees at OSC, 1948-1951
Box-Folder 1.6: Entomology and Zoology Correspondence, 1962-1974
Box-Folder 1.7: Professional Correspondence, 1930-1980
Box-Folder 1.8: Professional Correspondence, 1930-1980
Box-Folder 1.9: Specimen Donations Correspondence, 1940-1978
Box-Folder 1.10: Entomological Supplies Correspondence, 1960-1970
Box-Folder 1.11: Flea Beetle Sales Correspondence, 1929-1978
Series 3: School Records and Materials, 1908-1963
Series III contains various materials ranging from receipts for graduate school classes to references to textbooks. The classroom materials include laboratory notebooks dating from 1911 to 1917 for undergraduate and graduate classes in English, zoology and economic entomology. An interesting item in this series is Gentner's high school laboratory book dated 1908. Other classroom-related materials include student seminar papers, a thesis written by Gentner for a Civil Service Examination, study outlines, and teaching notes.
Box-Folder 1.12: Grades, tuition receipts and OSC Ph.D. program notes, 1945-1953
Sub-Series 2: OAC Class Notebooks
Box-Folder 1.13: English 32 and English 42, undated
Box-Folder 1.14: Animal Parasitology, 1914
Box-Folder 1.15: Zoology 302, 1914
Box-Folder 1.16: Zoology notebook with insect pencil drawings, 1916
Box-Folder 1.17: Zoology 315, 1913
Entomology of Field Crops
Box-Folder 1.18: Zoology 301, 1913
Introductory Entomology
Box-Folder 1.19: Zoology 107, 1913
With bird pencil drawings
Box-Folder 1.20: Zoology I, 1911
With mollusks pencil drawings
Box-Folder 1.21: Zoology II, 1912
With chordata pencil drawings
Box-Folder 1.22: Economic Entomology 105, 1916-1917
Box-Folder 1.23: Student Lab Book, 1908
Box-Folder 1.24: Student Seminar Papers, 1917
Box-Folder 1.25: Photography, 1916
Box-Folder 1.26: Thesis in Connection With United States Civil Service Examination for Scientific Assistant in Entomology, circa 1917
Box-Folder 1.27: Class Study Outline for Economic Entomology, circa 1917
Box-Folder 1.28: Teaching notes and outlines, 1946
Box-Folder 1.29: Insects Injurious to Grapes talk delivered at Michigan State College, 1927
Box-Folder 1.30: Entomology Books and Price Lists, 1936-1963
Series 4: Entomology Field Work and Research Notes, 1829-1975
Series IV includes tables, field notes, handwritten manuscripts, outlines, and articles written by Gentner. It also contains four card file boxes of detailed entomology research field notes and bibliographies.
Box-Folder 1.31: Research tables, field notes, portion of handwritten manuscript, undated
Box-Folder 1.32: Miscellaneous entomology outlines and notes, circa 1916
Box-Folder 1.33: Typescripts of published articles by Gentner, undated
Box-Folder 1.34: Articles published in Wisconsin Horticulture by Gentner, 1919-1920
Box-Folder 1.35: List of Species Collected by Gentner, circa 1924-1975
Box-Folder 1.36: Haltica Identification notes, undated
Box-Folder 1.37: Coleoptera notes, 1931
Box-Folder 1.38: Aphids(Cenara), 1961
Box-Folder 1.39: Epitrix notes, undated
Box-Folder 1.40: Chaetocnema semichalcea (flea beetle) Identification, 1951
Box-Folder 1.41: Citations and Notes on Various Entomology Topics, undated
Box-Folder 1.42: Techniques for Mounting and Preserving Specimens, 1922-1946
Box-Folder 1.43: Potato Flea Beetle Projects, 1963-1964
Box-Folder 1.44: Field and Research Notes, undated
Box-Folder 1.45: Plant Identification Collections, 1939-1958
Box-Folder 1.46: Flea Beetle and Distribution Information, 1914-1975
Box-Folder 1.47: Herbarium Specimens of Flea Beetle Damage, 1924-1940
Specimens discarded.
Box-Folder 1.48: 1829
Photocopy from microfilm.
Box-Folder 1.49: 1830
Photocopy from microfilm.
Sub-Series 1: Reference notes on index cards, undated
Box 2
Sub-Series 2: Halticinae References Under Species, undated
Box 3
Sub-Series 3: Halticinae Field Notes and Data Distribution, undated
Box 4
Sub-Series 4: Halticinae Bibliography, undated
Box 5
Series 5: Organizations, 1916-1980
Series V documents Gentner's membership in various entomological organizations.
Box-Folder 6.1: Entomological Society of America, 1916-1980
Box-Folder 6.2: Biological Research Institute of America, 1973-1976
Box-Folder 6.3: North American Beetle Fauna Project, 1972-1976
Series 6: Photographs, 1914-1936
Series VI includes approximately 100 black and white photographs documenting insect damage to vegetation. One photograph of Gentner, taken in 1914, is also included.
Box-Folder 7.1: Black and white photographs showing insect damage, 1916-1929
Extent: apx. 100

Box-Folder 7.2: Haltica probata Fall, leaves of a wild rose showing larval injury, 1936
Box-Folder 8.1: Haltica probata Fall, leaves of a wild rose showing larval injury, 1936
Extent: Nitrate negative.

Box-Folder 7.3: Louis Gentner holding a bug net, 1914

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