- Digital Commonwealth
- Perkins School for the Blind
At Katherine Cornell's home. Peter Rock on the Hudson, Guthrie McClintis at left, Robert Helpmaun with Keller's hand reading his lips. Polly Thomson sits to the right of Helen. From the Nella Braddy Henney collection.
Black and white photograph
- Samuel P. Hayes Research Library, Perkins School for the Blind, Watertown, MA. Contact host institution for more information.