1. National Security League, hearings on H. Res. 469 and H. Res. 476, to investigate and make report as to officers, membership, financial support, expenditures, general character, activities, and purposes of National Security League, and of any associated organizations, Dec. 19 [and 20], 1918. Bookmark Corporate/Agency Authors: National Security League, Special Committee to Investigate, House of Representatives, and Congress Publisher: National Security League, Special Committee to Investigate Date: 1918