John Martin "Marty" Gateman is a Canadian retired ice hockey defenceman. Gateman played junior hockey for the Hamilton Red Wings in the Ontario Hockey Association. He was drafted 79th overall by the New York Rangers in the 1972 NHL Amateur Draft but never played in the National Hockey League. Gateman turned pro in 1972 with the Central Hockey League's Omaha Knights. He then spent three years in the American Hockey League with the Providence Reds. He moved to the Cape Codders of the North American Hockey League before playing 12 games for the New England Whalers of the World Hockey Association and then returning to the NAHL with the Binghamton Dusters. Gateman spent one final year in the International Hockey League with the Fort Wayne Komets and back in the American Hockey League with the Rhode Island Reds before retiring in 1977. 

December 7th, 1952 in Southampton, Ontario (Age 71)