Yes
yes
Larussa
On September 12, 1954 a crowd of 84,587 was in attendance at Municipal Stadium in Cleveland as the Indians won both games of a doubleheader against the Yankees, 4-1 and 3-2.
In MLB, that is Stan Musial of the Cardinals against the Giants on May 2, 1954 and Nate Colbert of the Padres against the Braves on August 1, 1972 .... each hit 5 home runs during a doubleheader.
My baseball team played a doubleheader
twofold doubleheader
Yes
yes
It is usually referred to as the nightcap.
sports.espn.go.com/mlb/stats/doubleheaders
Larussa
1963
Vongerav Finds And. Doubleheader are some
no
Maybe in the minors but not in the majors for either the Athletics or Indians.
On September 12, 1954 a crowd of 84,587 was in attendance at Municipal Stadium in Cleveland as the Indians won both games of a doubleheader against the Yankees, 4-1 and 3-2.