Memorandum from Ray H. Mattison to Allyn F. Hanks
Subject(s): Historic buildings--Research, North Dakota--Elkhorn Ranch, Osterhout, George R., 1881-1958, Ranch houses, Reid, John H., 1882-1963, Roberts, T. Frank, 1859-1954
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Park historian Ray H. Mattison summarizes a trip to the Ralph Mosser and Elkhorn ranches with T. Frank Roberts and George R. Osterhout. There is some evidence that the Ralph Mosser ranch house was built from logs taken from the Elkhorn. There is general agreement that the National Park Service has correctly identified the site of the Elkhorn Ranch but the disposition of the buildings is disputed. Two photographs from the trip are included.
Collection
Theodore Roosevelt National Park
Creation Date
1949-10-10
Creator(s)
Recipient
Hanks, Allyn F. (Allyn Frank), 1906-1973
Language
English
Period
Theodore Roosevelt and Public Memory (1919-present)
Repository
Theodore Roosevelt National Park
Page Count
4
Production Method
Record Type
Multi-image
Resource Type
Rights
These images are presented through a cooperative effort between Theodore Roosevelt National Park – National Park Service and Dickinson State University. See the Theodore Roosevelt Digital Library Terms of Use for further copyright information.
Citation
Cite this Record
Chicago:
Memorandum from Ray H. Mattison to Allyn F. Hanks. [October 10, 1949]. Theodore Roosevelt National Park.
https://www.theodorerooseveltcenter.org/digital-library/o273764. Theodore Roosevelt Digital Library. Dickinson State University.
MLA:
Mattison, Ray H., 1903-1980. Memorandum from Ray H. Mattison to Allyn F. Hanks. [10 Oct. 1949]. Multi-image.
Theodore Roosevelt National Park. Theodore Roosevelt Digital Library. Dickinson State University. January 29, 2026. https://www.theodorerooseveltcenter.org/digital-library/o273764.
APA:
Mattison, Ray H., 1903-1980., [1949, October 10]. Memorandum from Ray H. Mattison to Allyn F. Hanks.
Theodore Roosevelt National Park. Theodore Roosevelt Digital Library. Dickinson State University.
Retrieved from https://www.theodorerooseveltcenter.org/digital-library/o273764.
Cite this Collection
Chicago:
Theodore Roosevelt National Park. https://www.theodorerooseveltcenter.org/collection/theodore-roosevelt-national-park. Theodore Roosevelt Digital Library. Dickinson State University.
MLA:
Theodore Roosevelt National Park. Theodore Roosevelt Digital Library. Dickinson State University. January 29, 2026. https://www.theodorerooseveltcenter.org/collection/theodore-roosevelt-national-park.
APA:
Theodore Roosevelt National Park. Theodore Roosevelt Digital Library. Dickinson State University. Retrieved from https://www.theodorerooseveltcenter.org/collection/theodore-roosevelt-national-park.