Elza formed around a
flagstop on the
Louisville and Nashville Railroad. The community had a
country store but no post office, instead receiving mail through the nearby community of Dossett. The community's name was derived from the surname of a railroad construction engineer named Paul Elza. Construction materials for a bridge over the
Clinch River and an underpass near Dossett were marked "Elza" and were delivered to a shed near the railroad tracks.
Manhattan Project When the federal government evaluated sites for the Manhattan Project facilities that ultimately were sited at Oak Ridge, the Oak Ridge site was described in internal memos as "near Elza." During
World War II, Elza was the site of one of the security gates on the borders of the
closed city of Oak Ridge. Located on the road from
Clinton to Oak Ridge, the Elza gate was "the busiest and most public" of Oak Ridge's entrance gates. When the Oak Ridge townsite was first opened to outsiders in 1949, the gate-opening ceremony was conducted at the Elza gate. ==Community legacy==