Complex sentence: The team started play after the NHL Senators relocated to St. Louis in 1934, playing in the Ottawa City Hockey League, later playing against Quebec Amateur Hockey Association teams and the team would play in in the Quebec Senior Hockey League from 1945 until 1955.
Split into simpler sentences: The team started play after the NHL Senators relocated to St. Louis in 1934, playing against Quebec Amateur Hockey Association teams. Later the team would play in in the Quebec Senior Hockey League from 1945 until 1955.