"Thanks, I am impressed by your research."

"Her death certificate said she died on July 22, 1979 of heart disease at the Motion Pictures & TV Hospital in Woodland Hills, Los Angeles County, CA."

"Wow, thanks for correcting the record!  What date did the death certificate give?"

"I did find her death certificate which says she was cremated.  The cemetery records at Mountain View Cemetery in Walla Walla references the crematorium and has a burial date at Mountain View of July 26, 1979.  Find a Grave has removed the disputed…"

"Thanks for answering."

"It’s not all that unusual for grave markers to have a wrong date on them.  According to IMDB she was in a few shows released in 1978, so 1979 would seem a more likely death year as opposed to 1977.
This California death record has a 1979 death year…"