Perhaps you should try some spelling variations:
alexander anderson » alexander alison
alexander watson » alexander samson, alexander alison, alexander gibson
alexander wilson » alexander alison, alexander william, alexander thomson

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: ((((alexander watson) OR (alexander wilson))) OR (((alexander anderson) OR (alexander robertson)))) (historian).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((alexander watson) OR (alexander wilson))) or (((alexander anderson) or (alexander robertson)))) (historian)".
• Adding a wildcard symbol may retrieve word variants: ((((alexander watson) OR (alexander wilson))) or (((alexander anderson) or (alexander robertson)))) (historian)*.