Correspondence, manuscripts, documents, financial records, memorabilia, and printed materials. The papers relate to numerous organizations--social, political, civic, and philanthropic--with which he was associated. Among these organizations are Legal Aid Society; Prison Association of New York; Outdoor Recreation League; Socialist Democratic League and National Party; American Alliance for Labor and Democracy; Constitutional Democracy Association; National Security League; YMCA, etc. Included among the papers are his journals and diaries, 1884-1950. An incomplete set of his letterbooks 1905-1960 and some family papers relating to real estate and financial matters