Jack Sieg
Jack G. Sieg (December 10, 1914 – December 21, 1968) was an American swimmer who used the butterfly stroke in 1935, developed by his coach David (aka Dave) Armbruster. He competed for the University of Iowa and first used the stroke in a breaststroke leg of a medley relay February 25, 1935.
Jack Sieg | |
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| Born | December 10, 1914 Kansas City, Missouri, U.S. |
| Died | December 21, 1968 (aged 54) Oklahoma, U.S. |
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