Complex sentence: He became leader of the plumbers'union in Montreal as well as president of Montreal's Trades and Labour Council before serving as president of the Trades and Labour Congress of Canada from 1904 to 1910.
Split into simpler sentences: He became leader of the plumbers'union in Montreal as well as president of MTLC (Montreal's Trades and Labour Council). Verville served as president of the Trades and Labour Congress of Canada from 1904 to 1910.