Career
Born in Winnipeg, Manitoba, he spent most of his career with the New York Rangers. Slowinski began his junior career with the Winnipeg Monarchs in the playoffs of the 1940-1941 season, scoring two goals in three games. He stayed in Winnipeg for one more season before moving on to the Ottawa Army and then Ottawa Commandos.
Over the next few years he went from team to team - the Red Deer Rangers, Calgary and Winnipeg Navy, and the Ottawa Senators - before making it to the National Hockey League. The New York Rangers put Slowinski into their lineup for the 1947-1948 season and, despite playing a handful of games for their AHL team, he was a New York Ranger for his whole career.
In the 1949-1950 playoffs, the Rangers were up three games to two over the Red Wings when the Wings came back and took the championship in overtime of the seventh game. He played five more seasons of pro hockey in the AHL before hanging the skates up for good in the 1957-1958 season.