Dave Beardmore for a start.

Front row: Far left Stwd Steve Snaith second from Right PO stwd Derek Richardson. Middle row: Far left Sg1A Barry Hughes aka Frog; Back row second from right Keith Jones

very back row 2nd from left John "Harry" Worth, choff i'm sure keith jones is the next left to the person you annotated in the back row ? middle row far right i'm pretty sure it's Willy Travis but i stand to be corrected.

Moved tag. The back/middle are mixed up.
From Tony Whitely:- Hi guys, a few names to a photo. Back row 3rd from left - myself (Stwd), and far right back row with GPMG in arms Graham Gartshore PO Cook. Hope this helps.

Seems to be a difference of opinion on the man holding the GPMG. Anyone confirm?