SNAC (Social Networks and Archival Context)"A free, online resource that helps users discover biographical and historical information about persons, families, and organizations that created or are documented in historical resources (primary source documents) and their connections to one another. Users can locate archival collections and related resources held at cultural heritage institutions around the world."
"SNAC is an international cooperative including, but not limited to, archives, libraries, and museums, that is working to build a corpus of reliable descriptions of people, families, and organizations that link to and provide a contextual understanding of historical records. "
American Men and Women of Science
American National Biography by 
Current Biography Yearbook by 
Dictionary of National Biography by 
Dictionary of Women Worldwide
Encyclopedia of World Biography
Who Was Who in Native American History by 
