Perhaps you should try some spelling variations:
"john willison charlotte" » "john williams charlotte", "john william charlotte", "john wells charlotte"
"john wallis callcott" » "john wall callcott", "john wellins calcott", "john williams callcott", "john william callcott"

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: (("john wallis callcott") OR ("john willison charlotte")).
• Removing quotes may allow a broader search: (( john wallis callcott ) or ( john willison charlotte )).
• Adding a wildcard symbol may retrieve word variants: (("john wallis callcott") or ("john willison charlotte"))*.