How many seasons did the man whose name was use in Honor of Maurice "Rocket" Richard Trophy played  in the National Hockey League?
Maurice Richard Joseph Henri Maurice "Rocket" Richard {'1': ", '2': ", '3': ", '4': "} ( ; ] ; August 4, 1921 – May 27, 2000) was a Canadian professional ice hockey player who played 18 seasons in the National Hockey League (NHL) for the Montreal Canadiens. He was the first player in NHL history to score 50 goals in one season, accomplishing the feat in 50 games in 1944–45, and the first to reach 500 career goals. Richard retired in 1960 as the league's all-time leader in goals with 544. He won the Hart Trophy as the NHL's most valuable player in 1947, played in 13 All-Star Games and was named to 14 post-season NHL All-Star Teams, eight on the First-Team. On January 1, 2017, in a ceremony prior to the Centennial Classic, Richard was part of the first group of players to be named one of the '100 Greatest NHL Players' in history.
Busher Jackson Ralph Harvey "Busher" Jackson (January 17, 1911June 25, 1966) was a Canadian professional ice hockey player. Jackson played 15 National Hockey League (NHL) seasons between 1929 and 1944 for the Toronto Maple Leafs, New York Americans and Boston Bruins. He was a member of the famed Kid Line with Joe Primeau and Charlie Conacher, one of the early NHL's dominant scoring trios. Jackson led the league in scoring in 1931–32 and was member of Toronto's 1932 Stanley Cup championship team. He was named to five NHL All-Star Teams and played in three benefit all-star games, including the Ace Bailey Benefit Game, the first all-star game in NHL history.