|Born: July 15, 1858
|July 11, 1884, for the Philadelphia Quakers|
|Last MLB appearance|
|July 22, 1884, for the Philadelphia Quakers|
|Runs batted in||3|
Onesime Eugene "Gene" Vadeboncoeur (July 15, 1858 – after 1930) was a Major League Baseball player. Vadeboncoeur played for Philadelphia Quakers in the 1884 season. He played in four games, collecting three hits in 14 at-bats, totaling a .214 batting average. He is the first native of Quebec to play in Major League Baseball.
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