The "E" In E-one means "enlisted" though the "one" suggests the paygrade for that place. The other pay out categories are "W" for warrant officers and "O" for commissioned officers. Some enlisted paygrades have two ranks. Optimizing your web site might help supply better information to engines like google so https://www.seoclerk.com/Link-Building/371800/GIGA-SEO-PACKAGE-POWERFUL-BACKLINKS