Portrait of Langdon Clemens in baby carriage. Langdon was born in 1870 in Buffalo New York and died 19 months later in 1872 in Hartford Connecticut. Death was attributed to diphtheria.
Photograph: albumen; b & w; 4 x 2.5 in. (10 x 6 cm.)
Mark Twain Archive, Gannett-Tripp Library, Elmira College