Even if they are Region 2 it's easy to make them work for any region using a couple simple programs. I have Circus World that was a PAL release but I bought it and made myself a Region 1 copy. Came out picture perfect. This is a list of John Wayne movies I don't have:
Adventure's End
Annie Laurie
Arizona (Men Are Like That)
Baby Face (Purchased)
Bardelys the Magnificent
Born Reckless
California Straight Ahead
Central Airport
Cheer Up and Smile
College Coach
Four Sons
Girls Demand Excitement
Hangman's House
I Cover the War
Lady and Gent
Maker of Men
Men Without Women
Mother Machree
New Frontier
Noah's Ark
Range Feud
Rough Romance
Salute
Speakeasy
That's My Boy
The Black Watch
The Deceiver
The Forward Pass
The Great K&A Train Robbery
The Lawless Nineties
The Life of Jimmy Dolan
The Lonely Trail
The New Frontier
The Night Riders
The Oregon Trail
The Voice of Hollywood #13
Three Girls Lost
Three Texas Steers
Words and Music
Wyoming Outlaw
Whatever region, it doesn't matter, even PAL. I'd be interested in knowing where I can get them. My goal is to get the entire collection. These are the only ones I'm missing.