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In 1926, the Missionary Oblates of Mary Immaculate opened St. Henry’s Preparatory Seminary at the request of Bishop Henry Althoff of the Diocese of Belleville, Illinois. The seminary welcomed its first 13 students on October 4 of that year — the first of nearly 3,000 students over six decades.

Both Oblate and diocesan students were educated in a six-year program at St. Henry’s as preparation for the major seminary and, ultimately, the Roman Catholic priesthood.

With the elimination of the college program in 1965,
St. Henry’s became exclusively a high school. The
La Salette religious community joined St. Henry’s in 1969, and the Redemptorists joined in 1980.

Dwindling enrollment (67 students in 1983–84), the small number of graduates continuing studies at a college seminary, and an impending staff shortage forced the closure of St. Henry’s in May 1984.

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St. Henry's Alumni

St. Henry’s Alumni Association, founded in 1931, has been intermittently active for 82 years. In addition to staging plays for the students in the early years, alumni often assumed a fundraising role for campus projects and have produced a succession of newsletters.

This nascent website, it is hoped, will become a robust, educational, and edifying medium of “all things St. Henry’s.” Please tell us what you want to see, learn, and experience here. E-mail Dan Franklin (Class of ’66) at

The Summer 2016 issue of the alumni newsletter is out! If you attended St. Henry’s, request a copy from editor Dan Franklin: