This is why I tell my students not to rely upon online research for their term papers! There is a whole lotta crap online. People post "facts" on unmoderated sites as "experts" and a lot of people just believe whatever they read. This "expert" has some facts right but some of her info is just fan community rumors or her own speculation (as she even admits at one point).
I've read tons of material, and never have I seen a story about Don building a nursery! Indeed, from the article where Don spills the beans about Stevie aborting the baby, he doesn't even seem 100% positive the baby was his. "To the best of my knowledge" is the way he put it. The book this "expert" speaks of where Don supposedly recounts how the baby had Down's Syndrome (!) does not exist as far as I know. Surely, if so, we'd have heard about it by now someplace besids here!
As for this "mystery daughter" - the "expert" admits they don't have any proof that Cheryl Cusella is related to Stevie. I seriously doubt that she is, because you know the media would have been all over it when Cusella was sued for fraud (see below).
Q: Who is Britney Marx?
A: In the 1980s Cheryl Cusella was a Stevie Nicks impersonator in Phoenix. She claimed she owned a limo company, and went into the concert promotion business. Cheryl booked acts she couldn't produce, and didn't pay the ones she did, including Mick Fleetwood's Zoo. Cheryl was convicted of two counts of fraud in 1989, served 38 days in jail, got seven years probation and paid $32,000 in restitution. She then changed her name to Britney Marx. Reportedly in 1990 she published a book called "Sweet Poison: A Heartfelt Diary." Most recently in June of 1999, Britney was charged by the Arizona state attorney general's office with six counts of theft (totalling nearly $500,000) and one count of fraudulent schemes and artifices related to an animal rescue organization."
http://stevienicksfanfare.50webs.com/trivia.htm
Stevie has never been connected romantically to her backup singers or Sheryl Crow, except in unsubstantiated tabloids. In fact, I remember Stevie talking about how she thought Sheryl Crow and Lance Armstrong were such a great couple (back when they were together). One of her backing singers even married her brother!
SO much BS. And I know whenever I see a "source" which attributes rumors with the phrase that someone "has been said to have been romantically linked" I see a red flag.