The Congregation of the Humility of Mary founded two schools in the diocese. The first school was established at their motherhouse when it was in Ottumwa. Founded as Visitation Academy in 1864, it had several name changes until 1930 when it was named Ottumwa Heights College. Ottumwa Heights merged with Indian Hills Community College, a part of the state of Iowa's community college system, in 1979 and has been officially inactive since 1980. The community's former motherhouse and college property has been IHCC's main campus since 1981.