At Columbia University, he was a teacher of the astronomer Samuel A. Mitchell, who went on to become Director of the Leander J. McCormick Observatory at the University of Virginia[1].
Professor Poor's son, Edmund Ward Poor, was one of ten co-founders of Grumman Aircraft on Long Island. Edmund Ward Poor's son E. Ward Poor II was for a long time a maintainer of the Boston Computer Society's public domain software collection and lives in Lexington, Massachusetts. Ward Poor's son, the professor's great-grandson, is Edmund Ward Poor III but goes by "Ed Poor".