National Archives Images. Noted Poet Walt Whitman, author of “O Captain! My Captain!” admired and knew personally the subject of the poem, President Abraham Lincoln. Retieved 9 Sep 2016.
Date: uncertain, presumed after 1860
Photographer: Mathew Brady or an assistant to Mr. Brady.
Repository: NARA's Still Picture Records Section, National Archives at College Park, MD. No restrictions. Public domain image, free of copyright.
See also:
Walter Whitman - WikiTree profile
US Civil War Project for the September War Focus at WikiTree
Lincoln and Whitman by David S. Reynolds
I wanted to share this photo of DuBois Copyright Free & CC Image Cabinet with the community. Location: unknown. Date: After 1860 Click here for the image details page or here for the full-sized version (1104 x 1388).