Sorry David I did not notice your post till a few days ago.
Firstly I appreciate your attention to my thread and let me pray your older gentleman's soul may rest in peace.
I did not know him and have no idea about the blue jacket but if his name is still Newton as you advised me by private message,
according to my further research during a few days, I came accross a former US military person's post for a reunion of Camp Yamada.
He writes
"1965 Bomb Renovation 2011/2/1 12:51
I was there in early 1965, as an A2c. Worked for SSgt Fitzgerald renovating M117's. remember
MSgt Newton, Msgt. Penn, John Lockner. Recently was in contact. With Lt Bossi, who has written a book about his AF career. I was only there for six months before getting transferred to the Munitions Storage Area at Itazuke. best two assignments in my AF career. Would like to hear from anyone stationed at Yamada.
by Gary E Peterson (guest) "
I have no more detailed information like his email address but would like to recommend you to post your same question again there.
The reunion site address is
Yamada Ammo Depot - japan-guide.com forum
Wishing aboves to be any help,
Regards,
Shinpachi