Sub-series 1, Client legal papers and lawsuits, 1836-1939, consists of family estate papers of the Hamilton family, Wenman's aunt, Nellie Hilfers, papers from the estate of Peter Stuyvesant, and two lawsuits brought against Wenman because of his connections with the Fish business. Also included is correspondence relating to the commitment of Frederick Wenman, Sr., an application for declaration of mental incompetence, and detailed bills for the housing and treatment of Frederick, which were paid by Charles from 1904-1909. Also included is a letter of introduction signed by P.T. Barnum. The letter, addressed to Eugene Schuyler, introduces the brother of the famous 19th century Swedish soprano, Jenny Lind. How this letter came into the possession of Wenman is unknown.