Susan Dimock was a distant cousin of Ira Dimock (1827–1917), a silk manufacturer, and she was also related to Henry F. Dimock, a New York City attorney associated with the Whitney family business interests.
Susan Dimock era curmá afastada de Ira Dimock (1827-1917), un fabricante de seda, e tamén estaba emparentada con Henry F. Dimock, un avogado da cidade de Nova York asociado cos intereses empresariais da familia Whitney.