Metcalf & Clark (Firm).  "The result of the Fifteenth Amendment, and the rise and progress of the African Race in America and its final accomplishment, and celebration on May 19th A.D. 1870."  Print.  1870.  Norman B. Leventhal Map & Education Center,  https://collections.leventhalmap.org/search/commonwealth:q524n5781 (accessed January 18, 2021).