Jim Morrison’s estranged father collected royalties until the father died in 2008, and Pamela’s mother collected royalties up she died in 2014. I don’t know who is collecting them now, but they will still stream in until 2041, if I understand correctly.
Jim Morrison’s father was a retired Rear Admiral living in Coronado CA. He was the senior office aboard the USS Constellation during the Gulf of Tonkin incident.