He did play for the Islanders ..
Wayne Gretzky did not play in college. He played for a few different teams in juniors in Canada before the WHA/NHL.
1978-1999 see Gretzky site: http://www.gretzky.com/
Wayne Gretzky did not show a major interest to play in Olympic Hockey.
Wayne Gretzky Wife is Janet Jones Gretzky. She was born in Bridgeton Missouri, January,10,1961.
Wayne Gretzky played for the Edmonton Oilers from 1979-1988.
Wayne played for the Edmonton Oilers, the Los Angeles Kings, the St. Louis Blues and the New York Rangers