Kahn, Donald Memorial Service for Donald Kahn. Nov. 21, 1935 - Jan. 16, 2015 Oct. 16 5:00 PM - Starting with reception. Weisman Art Museum, University of Minnesota campus, 333 East River Road. Sponsored by School of Mathematics Public welcome Don was Professor Emeritus of Mathematics. Also talented musician, photographer, political strategist and raconteur. Husband of State Representative Phyllis Kahn. Missed especially by her, two children, seven grandchildren, colleagues and former students.