Probably Joe Masseria's. I don't think the Genoveses or Gambinos had as many as 400 members, simply because it has never been proven and based on decades old guestimations. What we have are the numbers of the 1980s when they were still a powerhouse and I don't think these are that far off from the 1950s.
"It was between the brothers Kay -- I had nothing to do with it."
