FAQ for
"Little House on the Prairie"
In the Big Inning (1975)

Charles Ingalls is playing with the Walnut Grove baseball team and Walnut Grove is playing against Sleepy Eye.

"Walnut Grove Post Office" is indeed a real post office.

"Hansen's Mill" is indeed a fictional mill.

"Oleson's Mercantile" is indeed a fictional grocery store.

Walnut Grove won the baseball game against Sleepy Eye with a score of nine to eight.