April 17, 1976: When Mike Schmidt hit four straight homers in a

Mike Schmidt Signed 1990 Kenesaw Mountain Landis Memorial Baseball Award MVP Original Program (PSA COA)

Four or more home runs in a single game – Society for American Baseball Research

Mike Schmidt's top moments of career

Mike Schmidt Baseball Stats by Baseball Almanac

4 Home Runs in a Game: Every Occurrence in MLB History

Diamondbacks' J.D. Martinez hits four home runs against Dodgers

Glove Man - Big Hair and Plastic Grass

World Series Timeline (1976-2000) - ESPN

⚾️On April 17, 1976 at Wrigley Field, Philadelphia's Mike Schmidt hits 4 home runs in 1 game, including the game-winner, when the Phillies come back from, By Davenport Sports Network

WHEN TOPPS HAD (BASE)BALLS!: HIGHLIGHTS FROM THE 1970'S #6: MIKE SCHMIDT'S 4-HOMER GAME IN 1976