After the “ridiculous attack” on Admiral O’Neil, Theodore Roosevelt fondly recalls working with him. Roosevelt describes O’Neil as an “absolutely efficient and loyal” officer. Roosevelt looked into the government tests of the Gathmann Gun. He wonders if this was the same gun that Congress invested money that failed spectacularly during its testing phase.

Collection

Library of Congress Manuscript Division

Creation Date

1915-01-07

Creator(s)

Roosevelt, Theodore, 1858-1919

Recipient

O'Neil, Charles, 1842-1927

Language

English

Period

Post-Presidential Years (1913-January 6, 1919)

Repository

Library of Congress Manuscript Division

Page Count

2

Production Method

Typed

Record Type

Multi-image

Resource Type

Letter

Rights

These images are presented through a cooperative effort between the Library of Congress and Dickinson State University. No known restrictions on publication.

Citation

Cite this Record

Chicago:

Letter from Theodore Roosevelt to Charles O’Neil. [January 7, 1915]. Library of Congress Manuscript Division.
https://www.theodorerooseveltcenter.org/digital-library/o211335. Theodore Roosevelt Digital Library. Dickinson State University.

MLA:

Roosevelt, Theodore, 1858-1919. Letter from Theodore Roosevelt to Charles O’Neil. [7 Jan. 1915]. Multi-image.
Library of Congress Manuscript Division. Theodore Roosevelt Digital Library. Dickinson State University. March 30, 2026. https://www.theodorerooseveltcenter.org/digital-library/o211335.

APA:

Roosevelt, Theodore, 1858-1919., [1915, January 7]. Letter from Theodore Roosevelt to Charles O’Neil.
Library of Congress Manuscript Division. Theodore Roosevelt Digital Library. Dickinson State University.
Retrieved from https://www.theodorerooseveltcenter.org/digital-library/o211335.

Cite this Collection

Chicago:

Library of Congress Manuscript Division. https://www.theodorerooseveltcenter.org/collection/library-of-congress-manuscript-division. Theodore Roosevelt Digital Library. Dickinson State University.

MLA:

Library of Congress Manuscript Division. Theodore Roosevelt Digital Library. Dickinson State University. March 30, 2026. https://www.theodorerooseveltcenter.org/collection/library-of-congress-manuscript-division.

APA:

Library of Congress Manuscript Division. Theodore Roosevelt Digital Library. Dickinson State University. Retrieved from https://www.theodorerooseveltcenter.org/collection/library-of-congress-manuscript-division.