The Hawthorne Muchachos, the Caballeros' famous junior corps, was formed in 1959 by the renowned Caballero drum major, Ralph Silverbrand. The impetus for forming the corps was primarily to extend the great world of drum corps to younger players in Hawthorne and surrounding communities, but a secondary benefit was to create a ready pool of talent which would eventually "graduate" into the Caballeros once members reached the age of twenty-two and "aged out" of the junior corps. The Muchachos wore the same basic uniform as the senior corps except for minor trim differences, and shared the instruction staff and rehearsal facilities with the Caballeros