If you are a member of the Screen Actors Guild or certain other Hollywood trade unions — or related to a deceased member — you owe it to yourself to do a little research. SAG alone is sitting on $17.5 million in unclaimed residuals, either because the intended recipient cannot be located or is deceased. Look up the relevant name in this database and see if they have money. I just looked up a few friends and found them listed. I also looked up some classic performers. Stan Laurel and Oliver Hardy are owed money. So is Bud Abbott but not Lou Costello. So are Joe DeRita and Larry Fine.
I'm going to call a few friends and let them know they may have bucks waiting. In some cases, the amounts may be trivial but someone should give them the chance to find out.