During World War I, from 1917 to 1919, Eastham remembered local men who served in the Army, Navy, and Coast Guard: Chase Ralph A. Collins, Bernard C. Clark, Henry E. Horton, Earl K. Camp, Brewer Leonard J. Hatch, Freeman C. Gill, Alfred D. Steele, George B. Navy Hopkins, Clifton Steele WM Bradley, and Coast Guard members Collins Lewis H., Mayo Warren A., Crosby John F., Walker Abbott H., Cross William O., Walker Stanley M., and Lincoln Frank B.