Be Honored
Be honored. You have been entrusted a piece of history, a Marine's history. Care for it, shoot it.
And, if you're at the range and some real old timer starts admiring the Garand, talk to him. I do, and I've seen men in their 80's and 70's fire eight, hear the PING and hand me back the rifle with pretty moist eyes.
Just like my AR takes me back 40 years, these Garands can make an 80 yr old remember being 19 again.