That's Sonny (AKA Carmine or Anthony) Defeo on the left, his wife Marlene, their sons Dana and Jeff, Sonny's father Fred Defeo (holding Dana), and Sonny's mother Reggie (LaMura) Defeo.
When this photo was taken in 1959, Sonny was 27, Fred 59 and Reggie 51. I don't know the ages of the others.
Photos courtesy Sonny Defeo and Maryann Ward Downs
LANZARA-LANZARO FAMILY HISTORY