Home run No. 26 for birthday boy (75 today!) for the 1972 White Sox was the first of two in-the-park shots on July 31, 1972.
Allen, who would win the MVP, victimized future Hall of Famer Bert Blyleven both roundtrippers in an 8-1 win at Minnesota.
Here’s a great piece on the feat https://vimeo.com/46644832