- Digital Commonwealth
- Perkins School for the Blind
Nella Braddy Henney, Helen Keller and Polly Thomson engaged in conversation via tactile fingerspelling while seated in Adirondack chairs on the grass in Garden City, New York. Black dog with exposed tongue sits in front of Keller.
Black and white photograph
- Samuel P. Hayes Research Library, Perkins School for the Blind, Watertown, MA. Contact host institution for more information.