Perhaps you should try some spelling variations:
thomas nicholson » thomas richardson, thomas wilson, james nicholson
thomas dickson » thomas dawson, thomas denison, thomas dixon
thomas jackson » thomas clarkson, thomas johnson
1st baronet » 1st baroness, 1st baron, first baronet

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: (( sir thomas nicholson, 1st baronet ) OR ((( sir thomas dickson, 1st baronet ) OR ( sir thomas jackson, 1st baronet )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( sir thomas nicholson, 1st baronet ) or ((( sir thomas dickson, 1st baronet ) OR ( sir thomas jackson, 1st baronet ))))".
• Adding a wildcard symbol may retrieve word variants: (( sir thomas nicholson, 1st baronet ) or ((( sir thomas dickson, 1st baronet ) OR ( sir thomas jackson, 1st baronet ))))*.