The first time I went to the DMV for my RealID, I had my SS card, Driver's license (which I originally received 50 years ago), the birth certificate from the hospital and a couple of bills. That wasn't good enough, the birth certificate needed to be from the state, which meant that I needed to go to the County Clerk of Records. The website that showed what I needed has differences and the person I spoke with at the courthouse told me things that weren't true, but the second time I called, it resulted in a much shorter trip than I expected.
I fail to understand why someone who has had a driver's license for 50 years from the same agency that issues the RealID doesn't get the RealID without having to jump through a bunch of hoops.
A woman who was at the DMV the first time I went for this had been married, then divorced- they wanted a document that showed she had changed her name back to the original after the divorce, even though her driver's license and other documents show the name she was going to use on the RealID. The web page showing what can be presented didn't show anything like what they wanted.