What documents can I use to prove my wife's and children's current location for visa applications?

Any document that can justify that they have an address in the area you are applying. What they are trying to check is if you are in their jurisdiction so they can process your application at that post 🙏

Kids school report or student id

Thank You for your helpful report 👍

Congratulations 👏👏👏

PRINT OUT THE EMAIL THAT HAS YOUR DTV VISA.

That's what you should do... print it out.

You may have to show PROOF of your DTV Visa to airline staff on check-in for your flight ✈️ to Thailand...even to the connecting airline staff. Or to the land border crossing entry Thai Immigration Officer.

Upon arrival into Thailand, show the DTV visa to the Thai Immigration Officer and look at the STAMP placed in your passport to be sure you are STAMPED in for 180 days.

I did not have this problem, because we were residing in none of our home countries when we applied. So I had lots of options for the kids (passport stamps, resident cards, certificates of residence issued by 2 embassies per child), but I don't think you'll have issues here. If you really can't think of anything (school documents, health insurance documents, whatever from the US with the child's name on it which a tourist cannot get?), then I guess you could just explain it in a cover letter. Obviously, if both dad and mom live in the US and are married, the kids are very likely to live there too.

Id be forgetting the wife n kids.................

Which consulate? If still in the same region of country, your Arizona DL may work.

Picture of children in front of recognizable local landmark with GPS exif data showing

Water bill is good.

You should not worry too much about the kids, but maybe school documents?