Yes, The Colonies Were British . . .

. . . and now you’ll want to use the Oxford Dictionary of National Biography. It’s the major source for biographical information on individuals - engaged in all areas of activity -- who have lived in the British-dominated world. The latter is important to note because individuals who lived in the colonies, the Commonwealth, or "associated" places are included. For instance, there are lengthy entries for Jonathan Edwards, Cotton Mather, Thomas Jefferson, George Washington, and James Madison. It’s the direct successor of the esteemed Dictionary of National Biography. Offering 50,000 biographies, all written by experts and illustrated with 10,000 portraits from London's National Portrait Gallery, it is a complete revision of the earlier source's 36,000 articles. Over 13,500 people have been added and coverage of women and other originally under-represented groups has been increased. Most biographies treat a single person, but some contain a subsidiary biography, some cover a group, and there are articles on specific families. Many entries are lengthy and conclude with information on sources of information, pertinent archival collections, the source of likenesses (portraits), and a brief analysis of an individual's wealth at death. When appropriate, a biography is accompanied by a link to a parallel biography in the American National Biography (one would presume perspectives are not always the same) and to a link to the National Register of Archives. The latter is a collection of the catalogs of British repositories.
Visit it at: http://ublib.buffalo.edu/libraries/e-resources/ODNB.html