I have an ancestor, William Vollins or Vallins, who I believe was the son of Richard Vollins and Mary (Bowler), b 1777 in St Mary Cray, Kent (near Orpington). There are many other Vollins/Vallins family members in the Orpington area. He later married Sarah Crump in Wilmington, Kent (FamilySearch.org reference).
Here is the FamilySearch.org reference for his christening.
However, I have also found an index on the web site of the Kent Online Parish Clerk which suggests that he was rather the son of William and Mary Vollins.
The birth dates and christening dates are identical, but the parents' names differ. It has to be the same person being born, but perhaps the parents' names were mistranscribed. But for which record?
Does anyone have experience with the Kent OPC indices to know if it is likely to be more reliable or less reliable than FamilySearch.org?