Perhaps because of the disruption of his undergraduate course by World War I, Ferrar never obtained a doctorate. Copson, who was a friend and collaborator, suggested that he obtain a doctorate.
Marahil dahil sa pagputol ng kanyang undergraduate course sa pamamagitan ng World War I, Ferrar hindi makuha ng titulo ng doktor. Copson, na isang kaibigan at mga tagatulong, iminungkahi na siya makakuha ng titulo ng doktor.