Letter to Hamilton Coolidge from Douglas Campbell, May 20, 1918. Describes some of the recent air battles that Campbell was involved in while flying with the 94th Aero Squadron at the front. Includes typed transcription. Three handwritten pages and…
Photograph of servicemen sitting on a porch, Morristown, New Jersey, July 21, 1917. The men are identified in the verso inscription as Bill Ely, W. Bartlett Bacon, G. H. Kissel, R. L. Moore, E. E. Bates, Hamilton Coolidge [bottom right], and Doug…