Jesuit Father Robert C. Thul, 89, died Aug. 25.

Born in Cincinnati, Father Thul was a Jesuit for more than 70 years.

He taught math and religion at St. Ignatius College Prep, at St. Xavier High School in Cincinnati and at Colegio San Jose in Arequipa, Peru.

In the 1990s, Father Thul co-authored “Math for Change,” a teaching curriculum which incorporated social justice themes into math problems, and which has gone through multiple reprints. 

After 2006, he did pastoral ministry in Lexington, Kentucky; and in Cincinnati before moving to the Colombiere Center in Michigan in 2016.