Perhaps you should try some spelling variations:
"george waddell keller" » "george waddel keller", "george liddell keller", "george baddelley keller"
"george biddell keller" » "george liddell keller", "george baddelley keller", "george bill keller"
"george biddle keller" » "george bindley keller", "george bradley keller", "george boole keller"

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: (("george biddle keller") OR ((("george biddell keller") OR ("george waddell keller")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"george biddle keller\") or (((\"george biddell keller\") OR (\"george waddell keller\"))))".
• Removing quotes may allow a broader search: (( george biddle keller ) or ((( george biddell keller ) OR ( george waddell keller )))).
• Adding a wildcard symbol may retrieve word variants: (("george biddle keller") or ((("george biddell keller") OR ("george waddell keller"))))*.