Photograph of Charles Lathrop Parsons from the book: Downs, Winfield Scott, editor (1936). <i>Encyclopedia of American biography: New series. 5.</i> New York: American Historical Company. pp. 286–287.    
No copyright renewal.  No photographer identified.
Downs, Winfield Scott, editor
1936
Downs, Winfield Scott, editor (1936). Encyclopedia of American biography: New series. 5. New York: American Historical Company. pp. 286–287.