Baseball History on June 7 from Baseball Almanac
The Baseball Almanac website carries a plethora of June 7 events like:
1932 - Pitcher John Quinn, at 47, becomes the oldest player to have an extra-base hit (a double) and bat in a run as the Dodgers beat the Cubs 9-2.
1946 - One hour before game time, Pirates players vote 20-16 in favor of a walkout rather than play against the Giants.
1969 - The Washington Senators name Jeff Burroughs the number one pick in the June free-agent draft.