Perhaps you should try some spelling variations:
william callcott » william cannicott, william collett, william elliott
wallis callcott » wall callcott, wellins calcott
william chilcot » william child, william walcot, william wilcox
john wallis » john willison, john williams

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 william callcott ) OR ( john william chilcot )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( john wallis callcott ) or ((( john william callcott ) OR ( john william chilcot ))))".
• Adding a wildcard symbol may retrieve word variants: (( john wallis callcott ) or ((( john william callcott ) OR ( john william chilcot ))))*.