William Mosienko (November 2, 1921 – July 9, 1994) was a Canadian professional ice hockey right winger who played 14 seasons in the National Hockey League (NHL) for the Chicago Black Hawks. He is best noted for recording the fastest hat trick in NHL history. In a 1952 game against the New York Rangers, Mosienko scored three goals in 21 seconds. In the NHL, Mosienko won the Lady Byng Memorial Trophy in 1945 as the most gentlemanly player in the league, played in five All-Star Games and was twice named to the second All-Star team. He left the league in 1955 to help bring professional hockey to his hometown of Winnipeg. He helped create the Winnipeg Warriors of the Western Hockey League and was a three-time All-Star in his four years of play in the league. He won the league championship in 1956. Mosienko was inducted into the Hockey Hall of Fame in 1965 and into the Manitoba Sports Hall of Fame and Museum in 1980. Early life Mosienko was born on November 2, 1921, in Winnipeg, Manitoba. He was one of 13 children, having eight brothers and four sisters. His parents, Daniel and Natalia, were Ukrainian immigrants who came from Ekaterinoslav (modern Dnipro, Ukraine). In Canada Daniel worked as a boilermaker with the Canadian Pacific Railway. Mosienko grew up in Winnipeg's north end. He developed a passion for hockey and began playing at the age of 10 with the Tobans and later Sherburn athletic clubs. At 17, he sought to try out with the St. James Canadians junior team in 1939 and after being told he was too young, instead joined the Winnipeg Monarchs. He played the 1939–40 season with them and scored 21 goals in 24 games. Though still eligible for junior hockey, Mosienko left the team as they did not cover the cost of transportation for him within Winnipeg, later noting that as he was from a poor family he needed that money to help him out. Playing career Chicago Black Hawks Chicago Black Hawks player Joe Cooper discovered Mosienko playing on outdoor rinks in Winnipeg and recommended that Hawks management sign him. He had also been signed by the New York Rangers, but as Chicago submitted their claim first, they retained Mosienko's rights. Mosienko signed with Chicago at the age of 18 and was assigned to their minor league team, the Providence Reds of the American