Career
He was the husband of Ethel Bergstresser McCoy who was famous for her United States airmail collection. Walter McCoy specialized in the collection of Bureau issues and his Bureau plate number collection consisted of 20,580 pieces. A description of the collection was written by George Benedict Sloane.
Walter McCoy was one of the founders of the Philatelic Plate Number Association, later renamed the Bureau Issues Association, and later the United States Stamp Society.
He was also active at the Collectors Club of New York, serving there as president, and at the Board of Governors of the American Philatelic Congress, where he was a member. McCoy Award Water McCoy edited the Congress Book of the American Philatelic Congress from 1945 to 1950.
After Walter McCoy died, his widow, Ethel, in 1964, donated his famous collection of Bureau issue plate numbers to the Collectors Club of New New York