By nature introverted, shy, and modest, Draper refused honorary doctorates or having university buildings named in his honor. The only distinctions he accepted were for his role in the discovery of Asselar Man and his military decorations. Draper insisted that his role as benefactor to many charitable causes (including military history, archaeology, conservation, and population problems) remain anonymous. He never married and when he died in 1972, he left a significant portion of his assets to the Pioneer Fund to continue its scientific philanthropy.