Chris, not sure of your motivation here, but if its just to deflate this finding, go somewhere else!
If I could put hands on a weapon my grandfather or father carried in war, I'd be jazzed beyond belief. And the fact that this man's grandfather was a member of a highly decorated unit in a time where we were sending Japanese Americans to camps inside the US to prevent espoinage is an outstanding showing of American pride and self-sacrifice on his grandfather's part! My understanding of military history is that these Japanese American units per capita scored more battle honors and individual awards than their counterparts.
Maybe that means little to you, but it means a lot to a guy like me w/14 years in and currently serving who understands sacrifice and service before self as well as other who have BTDT.
Hamster, keep the info coming! I am getting goosebumps for you about this connection to your heritage!