Research Links

Animals

Presidential Pet Museum

United States Presidential Pets (Wikipedia)

Children

All the President's Children
List of Children of the Presidents of the United States (Wikipedia)

Culture
The Pew Research

Food
Favorite Food of Presidents

Governors
National Governor's Association

History
Historyorb

Presidents
The Miller Center (University of Virginia)
Religious Affiliation of President's of the United States (Pew Research)