Yes, it was a continuing story that ran in the early issues of The World of Dark Shadows, through the mid to late 1980's. The last chapter that I can remember had Quentin's wife Zelda time traveling to the late 1950's where she was impersonating a cousin of Julia's. Julia was apparently as gullible as the Collins family and welcomed her at face value. Somebody let Barnabas out of his coffin and he headed straight for Julia's neck. Maybe that's why she had the cosmetic surgery but the story stopped appearing before that could be addressed.
And many thanks for all the curses, folks!