I thank all of you for your comments above, which have helped fill several gaps in my understanding, and have suggested several additional lines of investigation that I am pursuing.
Here is a scanned photo, credited to the National Archives, of the U.S. pistol team at the July 6, 1919 award ceremony for the Inter-Allied Games, with their trophy. I believe that Lt. Orton B. Stauffer is the third man from the left.
Here is a scanned photo, credited to the National Archives, of the U.S. pistol team at the July 6, 1919 award ceremony for the Inter-Allied Games, with their trophy. I believe that Lt. Orton B. Stauffer is the third man from the left.

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