https://www.hagerty.com/media/motorcycles/show-your-true-grit-riding-this-honda-sl350-once-owned-by-john-wayne/
Pretty cool, didn't know he owned any bikes. Someone (maybe even The Duke himself) put some miles on it. 9500 showing on the odo.
I've been on his boat, the "Wild Goose" several times, which is still based in Newport Beach where he lived.