Sigh, as much fun as it might be to get a hit on one of those state "Unclaimed money" sites like https://www.claimittexas.gov, the search/sort/filter functionalities leave a LOT to be desired when your last name happens to coincide with a common first-name and also multiple major international banks. 😑

(FWIW, despite skimming through umpteen pages of results in various towns/cities we've lived in, zero results turned up. That said, I encourage other USAians to check for unclaimed-property in states where you've lived and hope you find something good.)