BUMP - New Information Available
After close inspection, the owner of the Deacon White N172 portrait has confirmed that the spelling on the card is in fact . . .
McGreachery (a "G", not a "C")
While I enjoyed this thread, a riddle is no longer likely unless, of course, McGreachery is an error and Goodwin really intended McCreachery

Thank you to the card's owner, cyseymour, and others who helped make this an interesting thread.