Thank you Enzo’s eyes. © Frank H. Jump
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According to Ted Ernst of Palo Verdes Estates, CA on January 28, 2007 in a search thread on the Bikelist dot org website:
Eisenmann was a sorta wild guy. He put his name on anything he could. Free Advertising! His last shop address we had was on Wyckoff Street in Brooklyn. My dad did business with Eisenmann back in the ’30s and I suspect that all German people affiliated with a NY German ethnic group was investigated by our authorities in the war, and rightly so. We never heard of any allegations of that sort, In fact right after the war when travel and racing started back up again, John Eisenmann and Ernie Seubert, (later cycling federation president) stayed at our house when they visited Chicago for a big bike race. It was always fun to hear Eisenmann talk Germanic English with a Brooklyn accent. – Search.Bikelist.org
Edward Albert, Ph.D., Professor Emeritus of Sociology of Chappaqua, NY later added:
…He [Eisenmann] had a store in Ridgewood, Queens and Imported Durkopp’s and Siebers. He was also President of the GBSC – German Bicycle Sports Club — for a time. He may have been investigated during the war for pro Nazi activities but that is not strictly proven.
Eisenmann’s Bicycle Shop – Ridgewood, Queens http://t.co/Sq4h8wbuoe