October 3, 1981: Montreal Expos clinch franchise's first playoff berth – Society for American Baseball Research

October 7, 1981: Expos win first MLB postseason game played outside U.S. – Society for American Baseball Research

October 16, 1981: Expos' Steve Rogers wins Game 3 of NLCS – Society for American Baseball Research

Montreal Expos - Wikipedia

October 16, 1981: Expos' Steve Rogers wins Game 3 of NLCS – Society for American Baseball Research

April 8, 1969: Bienvenue to MLB: Montreal Expos win inaugural game – Society for American Baseball Research

The Expos' last home game: An oral history

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Elliott: 2014 Most Influential Canadians in Baseball — Canadian Baseball Network

Expos clinch playoff berth (1981)

Season 2, Episode 13 - Colin Lancaster by Conversations with Sports Fans