I don't think the Belmonts are featured in Runaround Sue, Lovers who wander (same thing, really) OR The Wanderer. Dion went solo early on, and we all just kept adding the "Belmonts" tag to the name.
Then he had some success by teaming up with the DelSatins too. I'm a little vague on details and too lazy to look it up, but they had hits together as well.