Appearing in around 170 movies across half a century, John Wayne remains an icon of Americana almost 50 years after his death.

Yet it wasn’t until the start of the decade that his estate opened up an official museum to Duke with over 400 pieces of personal and professional memorabilia.

Speaking exclusively with Express.co.uk, his son Ethan Wayne told us: “I thought about a museum for many years. I’ve seen a lot of good museums fail that has really significant artifacts in them, and didn’t…