1. Amato 2. Accardo 3. Pranno 4. ??? (not Gags) 5. Palermo 6. Guy Cervone (Toodoped's new West Side chart has a pic; really looks like him) 7. ??? (Nuccio?) 8. ??? (think this may actually be Nuccio) 9. Cerone (Fosco implied it wasn't Ricca) 10. Di Varco!!!!***
***Came across a contemporary pic of Di Varco a while back, and instantly noticed the resemblance. Ear lobes and chin are spot on, and it makes sense, as I can recall Fosco asking someone on ANP which guy they thought was Di Varco. I believe the guess was #7.
Here's Di Varco at what looks like a country club: