Residents of Allendale who made the supreme sacrifice in wartime service included David L. Ceely, John J. Fox, Edward J. Hamilton, Eugene A. Ivers, Bruce S. Macintyre, John A. Sawyer, Harold W. Scott, Jr., and Charles A. Yeomans in World War II from 1941 to 1945; Harold Cook Ackerson, Marshall Harley Couch, James Robert Hubbard, John Raymond McDermott, Gustave William Nadler, Charles Larrett Nidd, and Harry Otto Weimer in World War I from 1917 to 1919; and Rocco J. DeMercurio in the Vietnam Conflict on December 31, 1969.