Perhaps you should try some spelling variations:
"sir thomas dickson, first baronet" » "sir thomas jackson, first baronet", "sir thomas dawson, first baronet", "sir thomas denison, first baronet", "sir thomas dickson, first barrier"
"sir thomas dickson, first tyrone" » "sir thomas jackson, first tyrone", "sir thomas dawson, first tyrone", "sir thomas denison, first tyrone", "sir thomas dickson, first three", "sir thomas dickson, first type", "sir thomas dickson, first those"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"sir thomas dickson, first baronet\") OR (\"sir thomas dickson, first tyrone\"))".
• Removing quotes may allow a broader search: (( sir thomas dickson, first baronet ) OR ( sir thomas dickson, first tyrone )).
• Adding a wildcard symbol may retrieve word variants: (("sir thomas dickson, first baronet") OR ("sir thomas dickson, first tyrone"))*.