[1][3] From 1927 to 1989 the Marlboros and Maple Leafs shared common ownership, first under the Smythe family and later under Harold Ballard.

In 1933, Frank J. Selke testified in court that the Marlboros senior team had a proposed agreement to guarantee its finances by the Toronto Maple Leafs.

[4] The Marlboros served as a farm team for the Maple Leafs for 40 years until direct NHL sponsorship of junior teams ended in 1967 when the NHL made the Entry Draft universal;[1][5] however, the two clubs continued to remain affiliated under a common ownership until 1989.

During this time the Marlboros sent over 180 players to the NHL, including six future Hockey Hall of Fame inductees.

[6] The Marlboros returned to prominence again in 1973, coached by former Toronto Maple Leafs captain George Armstrong.

Armstrong's team in 1973 lost only seven games all season, and two years later he coached the Marlboros to their seventh national title in 1975.

felt that Harold Ballard's penny-pinching ways helped contribute to the demise of Canada's most successful junior team.

In the playoffs the Marlboros defeated the reigning Memorial Cup champions St. Catharines Teepees, followed by the Quebec Remparts to win the Eastern Canadian championship.

Regina tied up game four at 2 goals each in the dying minutes of regulation to send the match to overtime.

Toronto defeated the Montreal Junior Canadiens in an 8-game series to return to the Memorial Cup and a rematch versus the Regina Pats.

1964 Toronto defeated the defending OHA champions Niagara Falls Flyers and the Montreal Jr. Canadiens to win the J. Ross Robertson Cup.

Many of the players on the 1964 Marlboros team, including Ron Ellis, Mike Walton and Pete Stemkowski, helped the Maple Leafs capture the Stanley Cup in 1967.

The Marlboros played the Port Arthur Marrs in the Memorial Cup series hosted at the Fort William Gardens in what is now the city of Thunder Bay, Ontario.

In 1966–67, the Maple Leafs also won the Stanley Cup, the last year the two clubs were national champions at the same time.

Toronto eliminated the St. Catharines Black Hawks and Ottawa 67's before meeting the Peterborough Petes in the OHA finals.

The series versus the Petes went to a seventh game played at Maple Leaf Gardens in front of 16,485 spectators, a record at the time for junior hockey attendance.

After winning the OHA title, the Marlboros travelled to Memorial Cup hosted at the Montreal Forum where their opponents would be the Quebec Remparts and the Medicine Hat Tigers, who were led by future NHL star Lanny McDonald.

The 1975 playoff run for the Marlboros was complicated by Mark Napier and John Tonelli signing professional contracts before the season ended.

Coach Armstrong said it was all worth it, even after his team had tossed him into the hotel swimming pool during a victory party.

They are George Armstrong, Charlie Conacher, Red Horner, Harvey Jackson, Joe Primeau and Bob Pulford.

Legend: GP = Games played, W = Wins, L = Losses, T = Ties, Pts = Points, GF = Goals for, GA = Goals against In 1903 club secretary Fred Waghorne wrote to the Duke of Marlborough in England for permission to use the storied name and crest.

The Marlboros occasionally also played games in the 1970s at the North York Centennial Centre and the Markham Centennial Centre when Maple Leaf Gardens was unavailable, usually due to scheduling conflicts at MLG with both the Toronto Maple Leafs and also the Toronto Toros of the WHA.

After the Junior 'A' team left for Hamilton, the then Maple Leafs owner Harold Ballard granted permission for the Minor Marlboros to retain the Marlborough name.

[1][3] Three years later in the fall of 1992 the Marlboros combined their fabled crest with the current NHL Maple Leafs' uniform.

NHL alumni of the GTHL Marlboros include, Sam Gagner, Ron Handy, Mike Hough, Peter Ing, Chris Kelly, Nathan LaFayette, Connor McDavid, Rick Nash, Mike Ricci, Jason Spezza, Brian Wilks, Wojtek Wolski and John Tavares.