1969 was the year the Expos and the Padres joined MLB as expansion
Padres early history was wild and crazy - Baseball Egg
Heritage Uniforms and Jerseys and Stadiums - NFL, MLB, NHL, NBA, NCAA, US Colleges: San Diego Padres Uniform and Team History
MLB,s ORIGINAL EXPANSION TEAMS 1961 & 1962.& 1969
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Two Members of 1969 Padres Next on My 100 List, by FriarWire
MLB expansion could be on deck, Sports
Washington Nationals / Montreal Expos All-Time 25-Man Roster
Cardinals keep Padres winless in extra innings with 5-2 victory, Pro Sports
Today in Baseball History: The first non-U.S. MLB game in history is played in Montreal - NBC Sports
From San Diego to Montreal - Gaslamp Ball
San Diego Padres - Wikipedia
Something from Nothing: How the Royals, Padres, Expos and Brewers sprung to life 50 years ago - The Athletic
A choice the Cubs made in the 1968 expansion draft could have cost them the pennant in 1969 - Bleed Cubbie Blue