Letter from Ray H. Mattison to Hermann Hagedorn
Subject(s): Archaeological surveying, Files (Records), History--Research, North Dakota--Elkhorn Ranch, North Dakota--Theodore Roosevelt National Park, Sewall, William Wingate, 1845-1930
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The National Park Service is planning on excavating the Elkhorn Ranch site and is searching for information regarding the layout and activities of the site. Historian Ray H. Mattison requests Hermann Hagedorn’s opinion on the value of William Wingate Sewall’s papers, currently in the possession of one of Sewall’s daughters.
Collection
Theodore Roosevelt National Park
Creation Date
1958-09-24
Creator(s)
Recipient
Language
English
Period
Theodore Roosevelt and Public Memory (1919-present)
Repository
Theodore Roosevelt National Park
Page Count
1
Production Method
Record Type
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:
Letter from Ray H. Mattison to Hermann Hagedorn. [September 24, 1958]. Theodore Roosevelt National Park.
https://www.theodorerooseveltcenter.org/digital-library/o273624. Theodore Roosevelt Digital Library. Dickinson State University.
MLA:
Mattison, Ray H., 1903-1980. Letter from Ray H. Mattison to Hermann Hagedorn. [24 Sep. 1958]. Image.
Theodore Roosevelt National Park. Theodore Roosevelt Digital Library. Dickinson State University. February 12, 2026. https://www.theodorerooseveltcenter.org/digital-library/o273624.
APA:
Mattison, Ray H., 1903-1980., [1958, September 24]. Letter from Ray H. Mattison to Hermann Hagedorn.
Theodore Roosevelt National Park. Theodore Roosevelt Digital Library. Dickinson State University.
Retrieved from https://www.theodorerooseveltcenter.org/digital-library/o273624.
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. February 12, 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.
