Perhaps you should try some spelling variations:
m'innes duncan » joannes duncan, m'lane duncan
innes duncan » james duncan, ian duncan
duncan smith » duncan sarah, duncan sir, duncan scott
duncan c » duncan _, duncan m

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: (( innes duncan smith ) OR ( m'innes duncan c )).
• Adding a wildcard symbol may retrieve word variants: (( innes duncan smith ) or ( m'innes duncan c ))*.