I'm coming into this discussion late in the day, but have a lot of information (my family tree is on Ancestry if anyone is interested).
Thomas TAYLOR, born in Errol, Perth, around 1775, father James TAYLOR, mother Elizabeth BRAES,
was my 3xgreat grandfather.
One of his sons, William, was born in Newburgh around 1816. The confusion about his place of birth could be because the enumerator asked another family member where William was born and they gave the incorrect village/parish, or possibly because the enumerator wrote down what they thought was correct, given the current address. Enumerators and families are human and mistakes were made!
William TAYLOR had a son, Thomas Smith TAYLOR, in 1839 in Auchtermuchty, with Jane BISSETT and they were not married. The 1841 census which could have helped me with my research into Jane Bissett, was unfortunately lost, as some of you will know.
So, William TAYLOR and Jane BISSETT are my 2xgreat grandparents.
Thomas Smith TAYLOR did meet up and find his mother Jane BISSETT, who had married Michael McCULLOCH, in Glasgow and he is lodging with them in the 1861 census, with his wife Rebecca (nee WALKER) and one year old son, also Thomas.
If I can help anyone with their research into these families, please let me know.