The "E" in E-1 means "enlisted" when the "1" implies the paygrade for that situation. The other fork out categories are "W" for warrant officers and "O" for commissioned officers. Some enlisted paygrades have two ranks. The Army, for instance, has the ranks of corporal and specialist in the paygrade https://trentonsoibw.blogpayz.com/27013417/not-known-factual-statements-about-religious-emblems