Back Row: Far left is Bill Croshaw; 5th from left is Greg Brewer; 6th from left is Roger Felesko;
far right is probably Jim Pearson.
Front Row (standing): The man in the middle holding the drumsticks is Ivan ("Boomski") Czestiakow.
Fourth from right, holding the one-valve trumpet is Tadeusz Gilbutowicz.
Can you provide details and/or identify the others?
Thanks to
for this photo.