Frank Merrill Caldwell
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Frank Merrill Caldwell was a career United States Army officer who served as a brigadier general during World War I and earlier served as a lieutenant colonel in the Spanish–American War.
Brigadier General Frank M. Caldwell in the Inspector General´s Office in May 1918.
Daniel Warren Ketcham
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Daniel Warren Ketcham was an American artillery officer who served with the U.S. Army.
May 1918 photo of Ketcham as a colonel
