During World War One, from 1917 to 1918, Allen honored local service members including Ora Avery, E.A. Baggerly, Max Baggerly, Wm. J. Barber, Robert Beers, Leonard Byard, Leo Carpenter, Solon Clickner, Dence Clobridge, Samuel Combs, Ray Craddock, Walter E. Crapo, Harold H. Crapo, Lynn Darling, R.A. Donnelly, Paul Donnelly, Fritz Engelhardt, Louie Frapey, Russell Gilchrest, George Gratz, Olin Grover, Ralph Grover, John Hayden, Roy Hayden, Lawrence Hayden, Clyde Hayden, Lester Kirkum, Leonard H. Kochendorfer, Edward L. Loveless, George Lysher, Robert W. Patterson, John Paddock, Carl Ritchie, Loren C. Smith, Floyd N. Sparks, Don G. Squires, Karry S. Thompson, Guy W. Titus, Harry Watkins, A. J. Whitney Weir, and Faye Young. Among them, Ralph Grover, Harry Watkins, and Faye Young were killed in action, Paul Donnelly and John Hayden were wounded, and Max Baggerly, Samuel Combs, and Fritz Engelhardt died in service.