Sometimes a single document can change the order of things!
My Goldring line in Rogate, Sussex, England seemed well documented. The birth of Elizabeth was in the Rogate parish register, showing her father was John Goldring.

Baptisms
Date Name Father Mother Surname
10/06/1690 Elizabeth John Not given GOLDRING

Likewise her marriage to my ancestor, William Walder/Waller is in the Rogate marriage register.
Rogate Marriages
06/05/1717
Groom WALDER William
Bride GOLDRING Elizabeth

The baptismal register shows four children of William Walder over the next few years, including my ancestor William, Who married Elizabeth Mills.

No other birth or marriage of an Elizabeth Goldring is shown in the Rogate parish registers during the appropriate time period, so it seemed very straight-forward.

Then this week I received an email message:
"One important fact is that daughter Elizabeth married Richard Cobb in Haslemere, Surrey. Many trees I have seen have that quite wrong!"

Later my correspondent sent me the Will of John Goldring, which includes "Seventhly I give and bequeath unto my daughter Elizabeth Cobb the sum of fifty pounds to be paid within six months of my decease."

I looked for the marriage of Elizabeth Goldring and Richard Cobb, and I found it on FamilySearch.org.
England Marriages, 1538–1973

Groom's Name: Rich. Cob
Bride's Name: Eliza Gooldring
Marriage Date: 18 Dec 1722
Marriage Place: Haslemere,Surrey,England
Indexing Project (Batch) Number: M01348-1
System Origin: England-ODM Source Film Number: 599894

My Elizabeth Goldring was married to William Walder and they were having children in Rogate parish at this time. Hmm ... obviously we have two different Elizabeth Goldrings. When and where was MY Elizabeth Goldring born, and who are her parents? I cannot find her in any of the currently digitized records, but the search will continue. I believe she was born near Rogate, otherwise it is unlikely that she would have been married in Rogate parish.