- Martin R. Kalfatovic
Janis, Sidney (08 July 1896–23 November 1989), art dealer and collector, was born in Buffalo, New York, the son of Isaac Janis, a clothing salesman and champion roller skater, and Celia Cohn. After attending elementary and vocational school in Buffalo, Janis performed on the Gus Sun Time vaudeville circuit. Working as a ballroom dancer, he demonstrated new dances such as the hesitation waltz, the one step, and others. In 1917 he joined the U.S. Naval Air Force and was sent to the Aeronautical College at the Great Lakes Naval Training Station in Waukegan, Illinois, to study mechanics....