Looks like the Bonanno faction was inducting members during the Bonanno split:

This one is from December, 1969.

The attitude isn't surprising. Given that both Joseph and Bill claim that the Commission that forced them out was "illegitimate", I totally buy that they would induct guys to breed loyalty. Plus, if Bonanno was inducting guys in Arizona and Montreal without Commission approval before the split, it follows that they would do the same during.
No indication of how many new guys they supposedly made, but since the Bonannos lost out, anyone who didn't move to Arizona with them probably faded into obscurity.
I haven't found any other indication, but Hank Perrone is described as a "button" here:

Given how close he was to Bill, and that even Rosalie wrote about him, seems likely to me he was made when he was killed. Although he doesn't show up on deceased members lists, I'm not sure. Could be that maybe the FBI didn't count him as he was a member of a "rogue faction", or maybe just slipped through the cracks.