According to the Mathematics Genealogy Project, Gregory mentored a total 10 doctoral students (total of 17 descendants) at Northwestern University and New Jersey Institute of Technology including John Pelesko.
Gregory Peck | Gregory of Tours | Order of St. Gregory the Great | Gregory Bateson | Pope Gregory VII | Gregory of Nyssa | Pope Gregory XIII | Pope Gregory XVI | Lady Gregory | Gregory S. Paul | Gregory Corso | Pope Gregory XV | Gregory of Nazianzus | Pope Gregory XI | Philippa Gregory | Gregory the Illuminator | Gregory Olsen | Gregory Blaxland | Dick Gregory | Pope Gregory I | Gregory Reinhart | Gregory Deyermenjian | Gregory Crewdson | Gregory Benford | Francis Thomas Gregory | Andre Gregory | Pope Gregory X | Pope Gregory VI | Jack Gregory | Gregory Thaumaturgus |