Curley (1947)

A high-spirited group of youngsters, lead by the mischevious Curley, become distressed when their beloved schoolteacher gets married and moves out of town.

Fearing they won't like her replacement, they play pranks on their new schoolteacher, then discover they mistook the teacher's aunt for their new teacher.

She ends up being young, pretty, and very nice. Part of the Hal Roach Comedy Carnival.