In 1848, a schoolhouse was located on a farm along Cedar Grove Road. When school sections were designated, the school was originally a union section with the neighbouring township of Augusta. By 1852, Rooney's Corners and the surrounding area had a large enough population to warrant their own school section. The area was labelled as section #20 with its school being accordingly named S.S. #20 Cedar Grove School. The school required yearly grants to stay open, and was eventually replaced in 1900 by a frame schoolhouse built further west.