The story of the anti-slavery convention portrayed in an 1850 daguerreotype has been extensively researched by Madison County Judge Hugh Humphrey. The results of Judge Humphrey's research have been published by the Madison County Historical Society in its quarterly publication Heritage. Printed copies of this document may be purchased from the Madison County Historical Society (address below). Pictured in the photo are Gerrit Smith, Frederick Douglass, James Caleb Jackson, Theodosia Gilbert, Samuel J. May, and the Edmonson Sisters, among others.