This man, with the Mephistophelian/Orson Wellsian visage, is Ralph E. Williamson, Ph.D. Chicago, a student of Chandrasekhar. Ralph came to UofT/DDO in 1946 or so. He and I had been great friends together at Cornell. At the start of WWII, we found ourselves teaching navigation to US Navy Midshipmen recruits. Then I went to Oak Ridge, Tennessee. Ralph stayed on for a bit, working with Charles Seeger onthe Cornell radio astronomy project (now Aricebo) that Charles initiated.