Clark, Robert Sterling, 1877-1956 -- Correspondence -- Manuscripts; Sowerby, Arthur de Carle, 1885-1954 -- Correspondence -- Manuscripts;
Letter from Alice M. Sowerby, Arthur Sowerby's third wife, in New York to Robert Sterling Clark in which Mrs. Sowerby refers to a previous letter that is not extant, asking Clark not to reply to it because Sowerby does not and must not know she...