In his religious life, he first bore the name Sixtus O'Connor (as during the Nuremberg Trials) and later, since 1968, Richard J. O'Connor.
Im Laufe seines Ordenslebens trug er zunächst den Namen Sixtus O’Connor (so, während des Nürnberger Prozesses) und später, ab 1968, Richard J. O’Connor.