Perhaps you should try some spelling variations:
duncan smith » duncan sarah, duncan sir, duncan scott
dundas sir » dundass sic, duncan sir, dunbar sir
jon duncan » john duncan, j duncan, ian duncan
mr dundas » mr dundas's

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: (( mr dundas sir ) OR ( jon duncan smith )).
• Adding a wildcard symbol may retrieve word variants: (( mr dundas sir ) or ( jon duncan smith ))*.