A Mass of Christian Burial for Leroy G. Callahan, a retired University at Buffalo professor, will be offered at 10 a.m. Wednesday in Nativity of the Blessed Virgin Mary Catholic Church, 8500 Main St., Clarence, after prayers at 9:15 in Amigone Funeral Home, 8440 Main St., Clarence. Entombment will be in SS. Peter & Paul Cemetery, Williamsville.
Mr. Callahan died Friday in his Clarence home after a brief illness. He was 73.
Born in Guilford, Ill., he graduated from the Oneonta State College and had a doctorate from Syracuse University.
From 1956 to 1961, he was a staff sergeant with the Air Force 3650th Instructor Squadron.
Mr. Callahan and his family came to Western New York in 1967, when he started as a professor of education at UB. He retired in 1994.
He had been a member of Phi Delta Kappa, the New York State Mathematics Teachers Association, National Council of Teachers of Mathematics and the Knights of Columbus.
He enjoyed playing golf and tennis and was active in Habitat for Humanity.
Mr. Callahan received the St. Joseph the Worker Award. He received the Distinguished Professor Award from the UB Graduate School of Education.
His wife, Margaret, died in 2004.
Survivors include five daughters, Patricia Randall of Adams Center, Mary Schmalzle of Hawley, Pa., Jean Rois of Amherst, Christine McCabe of Flanders, N.J., and Meg Steckley of Rochester; two sons, James of Clarence and Martin of Williamsville; two sisters, Rosie Berning of Galena, Ill., and Anna Berning of Hazel Green, Wis.; and 19 grandchildren.