She leaves behind daughter, Kathy M. Schneider and her partner; her daughter Karen S. Huban and her husband, Timothy C. Huban; and her two grandchildren, Kelly R. Huban and Eric R. Huban.
Born in Amsterdam, Holland, on September 26, 1928, she was the daughter of the late Katherine Haywood and Arie Bos. Mary and her brother, Roland, grew up in both Amsterdam and in New York City.
When she retired from the dancing world, Mary and Bob moved to Pittsfield, MA, where they raised their two daughters.