It may have changed since then....
I'm pretty sure. She would have been a member of AFTRA as residuals were becoming standardized in the early 70's. I know mine were.
The 65k they received were not for residuals. It was for unpaid income from merchandising, marketing, licensed likeness usage and so on.
Essentially this boils down to "you want to put my face on a lunchbox,pay me.
She probably doesn’t remember getting them because she was $hitfaced all the time.