Guide to Research CollectionsAbraham Lincoln Presidential Library
Papers: In the Philip Sidney Post and family papers, 1859-1933. 5 inches.
Correspondence, Grand Army of the Republic speeches, clippings, printed memorabilia, and Civil War photographs. Finding aid in repository.
Knox College Library
Papers: In Post family papers, 1857-1895. 50 feet.
Correspondence (family and official), diaries, reports, speeches, scrapbooks, financial and legal papers, clippings, and printed matter covering each phase of his career. Restricted.