Mackey, Frank, J. and Jernagan, Marcus, Wilson. (1937) Forward March. Vols. I and II. Chicago: Disabled American Veterans of the World War.
Moore, William, E. and Russell, James, C. (1920) US Official Pictures of the World War. Chicago: Regsteiner.
Stallings,Laurence. (1963) The Doughboys: The Story of the AEF. 1917-1918. New York: Harper & Row.
Sweeney, Daniel, J. (1919) History of Buffalo and Erie County: 1914-1919. Buffalo: The City of Buffalo.
East Aurora Advertiser. (East Aurora New York) May 10, 1917-January 9, 1919.
Trenches on the Web. “Posters”. Courtesy of Meehan Military Posters. [http://www.worldwar1.com/post006.htm], April 1997.
US Army “World War I Medal of Honor Recipients.” [http://www.history.army.mil/html/moh/worldwari.html], April 1997.
Aurora Historical Society (East Aurora, New York). “Red Cross Picture Books of WWI Soldiers”
Buffalo and Erie County Historical Society. “102nd Trench Mortar Battery: Autobiography and Troop History by Charles Pearson.” A65-9 Folder 1.
Buffalo and Erie County Historical Society. Private papers. Diary of Frank Brayman.
New York State Archives. “Abstracts of World War I Military Service” File B0808.
New York State Archives, “Miscellaneous accounts and poems” of residents of Hamburg, New York who were World War I veterans. File AO412-42.
New York State Archives. “New York ‘Boys’ in the War.” File A0412-19, Box 33
Ernst family papers. Cablegram: 8/15/18
Parish Register. St. Mathias Episcopal Church, East Aurora, New York. “Marriages”. Vol. 3
Interview with Helen Clay Natale, niece of Arthur Clay. May 22, 1997.