When I signed up here -> https://www.dmachoice.org, it gave me the option for other names at my address. For $2, it might be worth trying. There is even a "register the deceased" link.

Thanks. I did this, we'll see if it works. It's one thing to get junk mail for me, it's another thing to still be receiving credit card offers for a dead man. It makes me wonder how much of the annual credit card fraud is due to things like this and how often deceased person's identities are stolen for fraudulent purposes.

In my experience, even after you opt-out it takes months for the changes to actually happen.