For the World War I period the collection contains diaries, photographs, and photo albums of Jeffreys' activities while serving with the American Expeditionary Force inFrance and Germany, May 1918 to July 1919. The three diaries in the collection reflect Jeffreys' entire period of service, including basic training at Madison Barracks, N.Y., and photography training at Rochester, N.Y., preparatory to embarkation for Europe. Entries tell of training activities, lack of equipment, and poor sanitary facilities at Madison Barracks. Diary entries in France and Germany describe daily activities of an enlisted man, problems of ground and aerial photography, entertainment provided for the troops, and conditions in France and Germany. Photographs and photograph albums reflect war scenes in France and Germany and apparently include captured German photographs.
From the attempted but uncompleted world tour, there are four scrapbooks containing newspaper clippings, advertisement brochures, and letters of introduction (including ones from the Secretary of State Charles Evans Hughes and the President of the Republic of Mexico Alvaro Oregón). Jeffreys also published his own travel periodical entitled
The Yankee Globetrotter, copies of which are included.
Pertaining to the years in which Jeffreys operated a lecture service, there are six scrapbooks containing newspaper clippings, advertisements, and other miscellaneous material. The vast majority of the clippings are newspaper accounts of his numerous lectures. Also in these scrapbooks are miscellaneous materials from Jeffreys' unsuccessful bids for elected office, clippings concerning his work with veterans organizations, newspaper reviews and advertisements for his books, and materials from his various business interests.
Other material in the collection includes a pamphlet written by Jeffreys on a universal income tax plan, articles in various magazines concerning his activities, announcements of high school commencement exercises at which Jeffreys spoke, cartoons, photographs, newspaper clippings, and correspondence. Five of the books which Jeffreys authored,
God is My Landlord, The Fabulous "Dutch" Zellers, The Forgotten Men, The Ghost of Prohibition Marches Again and
Life Will Begin at One Hundred, are also included.