A243 sometime in late spring or early summer of 68

                     Top Left is "Chief" Leana, next is ?, then Jimmy Clendenin, Bac Si Grossman and Mazur (RIP).
 
                     Bottom row (l to r) Me, Dutch Wiegert (RIP), Ratliff, and ?.
 
                                                              Any help the unknowns would be most appreciated.