In fact Church was only one year older than Foster, who became his first Ph.D. student, and he had begun to supervise Foster in the same year that he was awarded his own doctorate.
Sa katunayan Iglesia ay lamang ng isang taon mas matanda kaysa sa Foster, na naging kanyang unang Ph.D. mag-aaral, at siya ay sinimulan sa Foster-asikaso sa parehong taon na siya ay iginawad sa kanyang sariling titulo ng doktor.