Letter on Company Stores from M. F. Moran to Edward Robertson, Labor Commissioner, 1890
Edward Mandell House Papers, Series II, Diaries, Volume 8
Mrs. W. C. Lathrop's letter thanking Thomas Edison for electricity, 1921
Two Letters to the United Mine Workers Journal
Letter from Albert Einstein to Franklin D. Roosevelt, August 2, 1939 on the potential power of a nuclear bomb
Daniel Patrick Moynihan letter to John Ehrlichman regarding carbon dioxide and climate change, 1969.
Robert E. Murray to Michael R. Pence, "Action Plan for the Administration of Donald J. Trump," March 1, 2017