Perhaps you should try some spelling variations:
charles gavin » charles gavan, charles gaudin, charles david
gavin duffy » gavan duffy, david duffy
grandison » grandson
duffy » diffy
duff » diff

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( charles gavin duffy ) OR ( charles grandison duff )).
• Adding a wildcard symbol may retrieve word variants: (( charles gavin duffy ) or ( charles grandison duff ))*.