[1] He attended Seton Hall University in South Orange, New Jersey where he played baseball as a pitcher in 1912 and 1913.

[2][3][4] Peploski was 5 ft 8 in (1.73 m) tall, weighed 158 pounds, and was a right-handed batter and thrower.

[1] Peploski played minor league baseball in the summer of 1912 as a pitcher for Brattleboro.

[1] He finished the 1913 season as a third baseman for the Lincoln Railsplitters in the Western League.

Henry, who was nicknamed "Pep" Peploski, played in six major league games, four more than his older brother.