- Abraham Lincoln Historical Digitization Project full text includes biographical information, speeches and writings, images and video are also available, from Northern Illinois University
- American President: An Online Reference Resource material on each U.S. President, first ladies and cabinet members, from the University of Virginia Miller Center of Public Affairs
- Catholic Online–Saints and Angels information on Catholic saints and angels with feast days and a calendar of saints’ days
- The Faces of Science: African Americans in the Sciences biographies of African American men and women who have contributed to science and engineering
- National Inventors Hall of Fame searchable by inventor, invention, induction date or decade
- National Women’s Hall of Fame biographical information on American women who have made great contributions in various fields
- Nobelprize.org information on all laureates
- POTUS Presidents of the United States information on the presidents including background, election results, cabinet members, with links to biographies, documents, audio and video, from the Internet Public Library
- Presidents of the United States biographical and other information from the White House, by president or by date
- s9.com Biographical Dictionary brief sketches of over 33,000 notable people
