Don Stone is a retired computer science professor. His interest in genealogy began at the age of 13 when his mother told him that he was descended from the artist John Trumbull. Some library research quickly revealed that he was descended from the artist’s brother, but he was hooked on the subject. Don enjoys researching modern, medieval, and ancient genealogy and making large-format illustrated genealogical charts. He received a Bachelor of Engineering Physics from Cornell University and an M.S. (Computer and Information Science) and a Ph.D. (Instructional Systems) from the University of Pennsylvania.