In October 1988, with the Toronto Marlboros losing hundreds of thousands of dollars a year, Maple Leaf Gardens Limited reached an agreement to sell the team for a reported $500,000 to a group from Hamilton.[1][2][3][4][5] The OHL team moved to Hamilton for the 1989-90 season, becoming the Dukes of Hamilton.[6][4] The name "Dukes" originated as a nickname for the Toronto team coming from its namesake, the Duke of Marlborough.
The Dukes were chosen to host the Memorial Cup their first season in Hamilton. When they finished last in the standings, the Dukes declined their berth as hosts of the Memorial Cup tournament. The OHL sent the league finalist Kitchener Rangers instead.
The second season for the Dukes was only marginally better even after switching from the Leyden Division to the Emms Division. The Dukes qualified for the last playoff spot, but lost in four games straight. Following the 1990–91 season, the team was relocated to Guelph where it became the Guelph Storm.
Bill Armstrong started the 1989–90 season playing defence for the Dukes, but two mid-season trades later he wound up playing for the Oshawa Generals, and scored the winning goal in double overtime of the Memorial Cup final, played at the Dukes' home arena, Copps Coliseum.
The Dukes colours were red, white & blue. The home jerseys had a white background with red & blue trim. The road jerseys were a red background with white and blue trim. Their uniforms were similar to those worn at the time by the National Hockey League's Washington Capitals. The colour of the top of the crown on the logo was either red or white, opposite or the background of the home or away jersey.
^Houston, William (1988-10-20). "Hamilton lawyer, realtor purchase OHL Marlboros". The Globe and Mail.
^Kalchman, Lois (1988-10-20). "Hamilton new home as Marlies are bought". Toronto Star.
^Hunter, Paul (1989-03-18). "Death of the Marlies: The cold, hard facts Rising costs and dwindling attendance have sunk once-proud Toronto Marlies, seven- time winners of Memorial Cup". Toronto Star.
^ ab"Marlies fare well as end nears Club on a win streak before transformation to Dukes of Hamilton". The Globe and Mail. 1989-03-13.
^Proudfoot, Jim (1989-02-08). "Toronto should miss Marlies, but it won't". Toronto Star.