Visual Sources
Visual materials, i.e., drawings, paintings, prints, photographs, films, videos, etc. are to be found in many Harvard libraries. Records for many, but by no means all, individual Harvard University Library images are available in VIA, an online catalog of images. Records include subjects and a thumbnail image.
Images
Unseen : unpublished black history from the New York Times Photo Archives, by Darcy Eveleigh, Dana Canedy, Damien Cave and Rachel L. Swarns. New York : Black Dog & Leventhal Publishers, 2017, 308 pages
HOLLIS Record
Resources for African American Research: National Archives
Umbra Search: African American History
Ross Archive of African Images
Digital Library on American Slavery
--Race and Slavery Petitions Project
--NC Runaway Slave Advertisements
--Voyages: The Trans-Atlantic Slave Trade Database
--Slave Deeds of North Carolina
--Slavery Era Insurance Registries
Images of African Americans from the 19th Century
Africa and the African Diaspora Search box under Filter
In Motion: The African-American Migration Experience
Google Books Advanced Book Search - Content: Magazines, put magazine title in Return books with the title field.
--The Crisis, 1910-2000,
--Ebony, 1959-2008
--Freedomways, 1961-1985,
--JET, 1951-2005,
The Atlantic slave trade and slave life in the Americas: A visual record
NYPL Digital Gallery offers over 700,000 images from the New York Public Library.