It's interesting to note how, as of Season 1, Junior had the biggest crew in the family. As of 1999, he had:

Soldiers:
-Mikey Palmice
-Chuckie Signore
-Patsy Parisi
-Philly Parisi
-Murf Lupo
-Tommy DiPalma
-Gigi Cestone
-Beppy Scerbo
-Bobby Bacala, Jr.

Associates:
-Donnie Paduana
-Gus Esposito
-Eggie Marino

Compared to Tony's at the time:
Soldiers:
-Big Pussy
-Paulie

Associates:
Christopher
Brendan Filone
Corky Ianucci
Pete LaRosa
Thomas Maccaratto
Georgie Santorelli
Alfie

Apparently Larry Boy had the largest crew but Tony had other soldiers at the time such as Carlo, but I think Chase purposely focused on his inner circle

Wasn't Silvio made in Tony's crew?

And Junior had Eugene Pontecorv as an associate.

I wish the writers would’ve went into depth about the makeup of the crews.