Allen had to be persuaded by several of his future teammates that both the organizational and racial climate in Philadelphia had changed for the better since his 1969 departure from the team.
On May 4, the Phillies traded their first baseman Willie Montañez to the Giants for Garry Maddox which provided a bat for the outfield and opened first base for Allen.
On May 14, 1975, 30,908 fans came to Veterans Stadium for Allen's return to Philadelphia and saw Steve Carlton shut out Cincinnati by the score of 4 to 0.
Allen played first base, batted fifth between Greg Luzinski and Mike Schmidt and was given a standing ovation when he stepped into the batter's box in a Phillies uniform for the first time since the final game of the 1969 season.
Infielders Other batters Coaches Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg.