Current junior capts are:
m88A NYC, 20 Mar 2000 North hire
727 nyv, 13Mar 2000 North hire.
Both are surrounded by 4Jun2001 south guys. So I'd say that's the current junior capt hire date, if you're looking for most recent.
outside nyc, junior capt is dtw 717a, north again, but equivalent south hire date of 22May2000.
Basically we're within 2 classes of all the furloughed guys from 2001 now, for the absolute junior reserve A. WOW that guy asked for the pain.