![Federal Records of World War I. Publications Nos. 51-7 and 51-8The National Archives ;Your Government's Records in the National Archives, 1950. Publication 51-4The National Archives ;Preliminary Inventory of the Records of the United States War Ballot Commission. Preliminary Inventory No. 24, Publication No. 51-11by Robert W. Krauskopf;Preliminary Inventory of the Records of the Office of War Mobilization and Conversion. Preliminary Inventory No. 25, Publication No. 51-12by Homer L. Calkin;Preliminary Inventory of the Records of the Bureau of Aeronautics. Preliminary Inventory No. 26, Publication No. 51-13by William F. Shonkwiler;Annual Reports of the Treasurer and the Director of the Historical Society of York County for the Year 1950]()
Federal Records of World War I. Publications Nos. 51-7 and 51-8The National Archives ;Your Government's Records in the National Archives, 1950. Publication 51-4The National Archives ;Preliminary Inventory of the Records of the United States War Ballot Commission. Preliminary Inventory No. 24, Publication No. 51-11by Robert W. Krauskopf;Preliminary Inventory of the Records of the Office of War Mobilization and Conversion. Preliminary Inventory No. 25, Publication No. 51-12by Homer L. Calkin;Preliminary Inventory of the Records of the Bureau of Aeronautics. Preliminary Inventory No. 26, Publication No. 51-13by William F. Shonkwiler;Annual Reports of the Treasurer and the Director of the Historical Society of York County for the Year 1950Review by: J. Orin Oliphant · Pennsylvania History · 1951