"Do any of the census records indicate that any family member was naturalized? Where did they settle? One census record says he was eligible to vote, so that should mean he was naturalized, but that could be an error." Comment: Some folks might be misled by the above. Citizenship was historically not a universal requirement for voting. So that fact that a male of a certain time and place voted does not imply that he was naturalized a citizen. Unfortunately my history doesn't go beyond this factoid.