Valo's residents were known as Valons, and this planet was also called Valo. These Valons were made up of various species, humans among them. Ram Jomaram, a Jedi Padawan, was himself a Valon. It was traditional for Valons to wear ear cuffs as decoration.
The first appearance of Valons was in the novels titled The High Republic: The Rising Storm and The High Republic: Race to Crashpoint Tower. In a preview of Race to Crashpoint Tower that was included in The High Republic: A Test of Courage, they were initially referred to as "Valorian."