Vice-president Hamilton was elected vice-president of the CAHA in March 1928, at the same meeting when control of the Allan Cup was formally handed over from its trustees to the CAHA. He was re-elected vice-president in March 1929, and was named to the finance committee which controlled all CAHA funds except for Allan Cup proceeds. He was placed in charge of junior and senior playoffs for
Western Canada, and stated the lack of artificial ice surfaces in
Alberta and Saskatchewan as a reason for playing the finals in
Winnipeg.
President, first term Hamilton was elected president of the CAHA on March 29, 1930, to succeed
W. A. Fry. Hamilton's time as president began during a period of growth in junior hockey which saw CAHA registration increase to 13,675 players. He submitted a motion in which the CAHA would accept registrations from any former professional players reinstated as amateurs by the AAU of C, although those players would not be eligible for the
Olympic Games. He later arranged to have a mail-in vote for the CAHA to decide whether or not players who tried out for professional teams but who were not signed to a contract could be reinstated. At the 1931 general meeting, Hamilton praised the players who chose to remain as amateurs despite the lure of professional teams, and the resulting of increase of registrations. He also praised the organizations which continued to produce quality hockey for the Canadian public despite inroads by professional teams, and felt that the security of the CAHA rested "upon the ideals and practices of honest and honorable men". The CAHA decided not to reinstate amateur status to players who tried out with professional teams. It also disallowed any of its teams to play exhibition games against professional teams, and let the AAU of C decide whether professionals in one sport could be amateurs in hockey. The CAHA also approved the naming of the host location for Allan Cup and Memorial Cup finals a year in advance, as opposed to the executive deciding a month in advance.|alt=Photo of the trophy on display at the Hockey Hall of Fame Hamilton was re-elected president of the CAHA on April 3, 1931. In advance of the August 15 deadline to register with one's own branch, Hamilton issued another warning and stated that investigations would continue and that a national meeting might be called to resolve the issue. The decision was a change from the previous year's deadline when the CAHA had approved all transfers submitted without investigation due to the
Great Depression and the need to relocate for employment. In October 1931, the CAHA executive changed the deadline to a reside in a branch from May 15 to January 1, in an effort to stop the "hockey tourist", and investigate bona fide transfers for employment. The change effectively meant that a player had to sit out for a season before he could transfer between branches. The
Manitoba Amateur Hockey Association refused to approved transfers for eight of its players to
Montreal and
Moncton without a sworn
affidavit by each player for the reason of the transfer. Hamilton responded to charges of professionalism in leagues in
the Maritimes by saying that a hearing would be conducted if an official complaint was received. In an effort to ensure amateurism, he announced that players taking part in provincial finals for the
1932 Allan Cup and
1932 Memorial Cup playoffs would be required to recite an oath similar to the
Olympic Oath, and declare they meet all amateur requirements. Any violation of the oath would render the player's team ineligible for the remainder of the playoffs. At the general meeting in 1932, the CAHA considered implementing the forward pass in the amateur game, as used in the professional game to reduce the frequency of
offside infractions. In an effort to educate, Hamilton circulated diagrams of hockey plays where the rules were regularly misinterpreted such as offside. Registration with the CAHA had increased in five consecutive seasons despite competition from professional teams. Hamilton declared the playoffs were financially successful, and felt that the CAHA had the confidence of the Canadian public for tending to the "moral and physical uplift of our athletes". ==Sports involvement in the 1930s==