Donald Crump
John Donald Crump (March 30, 1933 – May 5, 2011) was the seventh commissioner of the Canadian Football League from January 1990 to December 1991. During the previous two decades he had worked for Harold Ballard as an executive of the Hamilton Tiger-Cats and financial officer of Maple Leaf Gardens.
He was a chartered accountant by training and joined Maple Leaf Gardens in the 1970s. He later said in an interview with the Toronto Sun “When I went in (to MLG), there was less than a million dollars in surplus earnings... When I left, it was a stable business, with $14 or $15 million in retained earnings.”
Crump, an executor of Ballard's will in 1990, helped Steve Stavro gain control of Maple Leaf Gardens Enterprises following the death of Ballard.
(sources: http://www.torontosun.com/2011/05/06/excfl-commish-gardens-exec-donald--crump-dies and http://www.thestar.com/sports/football/cfl/article/987198--former-cfl-commissioner-donald-crump-dies-at-age-78?bn=1)