Ab began playing organized baseball in Norwood, Winnipeg. He had great range, a tremendous arm, batted cleanup and pitched in relief in critical games. Ab led Norwood to championships in the midget, juvenile and junior ranks and played with the Elmwood Giants senior team from 1958 to 1960. He was named MVP of the Winnipeg Junior League in 1956. Ab played a game with the Northern League’s Winnipeg Goldeyes and attended the Washington Senators Baseball School in Florida in 1957. While in Washington, Ab was named the outstanding shortstop. He went on to play in the Georgia-Florida Class D League in 1957.