 As well as describing new dinosaurs, Gilmore wrote several monographs, including a 1914 monograph on "Stegosaurus", a 1920 monograph on carnivorous dinosaurs, a 1936 review of "Apatosaurus", as well as a more focused 1925 study of the Carnegie juvenile "Camarasaurus".Gilmore retired from the Smithsonian in 1945, and died on September 27, 1945.He was buried on September 29, 1945 at Arlington National Cemetery.