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In 1918 he served in the artillery in the United States Army. After the war he became a businessman.
Grand Slam doubles finals 
Titles (1) 
|1917||US Championships||Fred Alexander|| Harry Johnson
|11-9, 6-4, 6-4|
- "Many Surprises in Junior Tennis" (PDF). The New York Times. 16 Sep 1914. Retrieved 8 May 2012.
- "Kynaston beaten by Throckmorton" (PDF). The New York Times. 7 Jul 1919. Retrieved 8 May 2012.
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