I have access to some of my old computers, hopefully the right ones. To be honest it's a crap shoot, but, I gotta try. I do not know if the email folders were saved on my HD.... like I said, when I login to mail.aol.com, it shows only email from 2015 til current. I lost literally 15 years of emails/files/folders.
A couple of years ago, I tried logging on to aol via AOL Desktop program, and it is no longer working/functional. They discontinued it.
The only steps I took in 2017 to recover the info was just trying to log on to my old email accounts, and did quick scans looking for certain keywords, such as bitcoin, bitcoin core, bitcoin-qt, wallet, et. cetera.
why the emphasis on email? if you physically have the computers you believe the wallet files are on, you should be searching
those for your wallet.dat file.
are you sure we're talking about a local bitcoin wallet (on your PC) and not an account with a third party website?