Dan died March 13, 2016, two days after surgery for a hip fracture.
Born in South Bend, Ind., he attended Riley High School. His Princeton major was mathematics. A member of Quadrangle Club, the Chapel Choir, and the Undergraduate Council and chairman of the National Canterbury Association, he also served as president of the St. Paul Society and the Student Christian Association.
After Princeton, he did graduate work in philosophy at the University of Minnesota and earned his Ph.D. in 1962. He met and married his wife, Marly, while completing his degree. They moved to Ohio, and he taught at Oberlin College for the remainder of his career. Dan was a member of many college committees over his 38-year tenure. He edited and authored a number of publications, and in 1990 he published Augustus De Morgan and the Logic of Relations. Dan loved music, and he and Marly attended scores of concerts yearly.
The class offers condolences to Marly; children Stephen and Karen; and four grandchildren.