relexmac,
We, too, would like to add our welcome to you, to the John Wayne Message Board!
We had to do a little digging, but came up with a link to the following thread, which largely gives answer to your question. Of course, it is from several months ago, and some of those on the list may have since died. Also, it is in no way comprehensive, so there may be others we know who are not on the list, but it is fairly extensive.
Some Favorite Actors Of Mine I Happily, found out that are still alive
Chester 
and the Mrs. 
