Perhaps you should try some spelling variations:
"alexander wilson dundon" » "alexander alison dundon", "alexander william dundon", "alexander thomson dundon", "alexander wilson lyndon", "alexander wilson canon"
"alexander wilson duncan" » "alexander alison duncan", "alexander william duncan", "alexander thomson duncan"

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: "((\"alexander wilson dundon\") OR (\"alexander wilson duncan\"))".
• Removing quotes may allow a broader search: (( alexander wilson dundon ) OR ( alexander wilson duncan )).
• Adding a wildcard symbol may retrieve word variants: (("alexander wilson dundon") OR ("alexander wilson duncan"))*.