The Escorts at Lalo's (October 28, 1963)

(Lalo Guerrero on stage in background introducing the band)

Mark & the Escorts (1964)

(left to right- Ricky Almaraz, Trini Basulto, Richard Rosas, Mark Guerrero, Ernie Hernandez, and Robert Warren)

The Men from S.O.U.N.D. (1966)

(left to right- Tony Rodas, Richard Rosas, Mark Guerrero,
George Ochoa, and Ernie Hernandez)

Nineteen Eighty Four (1969)

(left to right- Richard Rosas, Ernie Hernandez, Tony Rodas, and Mark Guerrero)

Tango (1974)

(left to right- Ernie Hernandez, Richard Rosas, Mark Guerrero, and John Valenzuela)

Tango- Roxy Theater, Hollywood (1974)