the endowment for the Heisman Trophy. Dan Heisman's paternal great-grandfather, Aaron, was John Heisman's first cousin. Heisman is married to Shelly Hahn. His first wife, Susan "Holly" Hollis Bloom Heisman, died of breast cancer in 1994; they had one son, Delen, a graduate of Carnegie Mellon University. Heisman was born in Willow Grove, Pennsylvania in 1950 and currently lives in Wynnewood, Pennsylvania. He is a member of the Society for American Baseball Research and had a baseball newsletter, "Baseball's Active Leaders". His hobbies include backgammon, science fiction, collecting comic books, and following the Philadelphia sports teams. Books References External links Dan Heisman personal site Chess Cafe PA State Chess Federation Chess.com/ danheisman 1950 births Living people American chess players American chess writers American male non-fiction writers Penn State College of Engineering alumni People from Montgomery County, Pennsylvania California Institute of Technology alumni