Hi Isles.
Sorry............if I've missed something
but why does William LOW and Jean / Jane PETER having a son named David Ferrier LOW prove her parents were PETER/FERRIER - any more than seeing William LOW & Jean/Jane PETER on the 1841 Census with an Ann NICOL in the house which happens to be the name of Jean PETER's mother??? I realise that Census Ann NICOL may NOT be her mother, but to my mind this connection is perhaps a more likely "signpost" than the middle name of a son (which could also be the name of a relative, a priest...). And not forgetting the LOW/PETER child named Andrew, seemingly after the PETER husband of Ann NICOL ......
If investigating middle names : Who was child Margaret Lyall PETER named after?
And either way you look at it, the IGI births of the LOW children to William and Jane/Jean don't seem to fit a naming patterns for either parent scenario! There is an Andrew, but no Ann.
There is a Jane, but no John.
And/or if there are 2 sets of parents and some of the children are not on IGI, the naming pattern theory is out ...and not everyone stuck to it anyway,
Hi Jean:
Have as Isles suggests, you looked up the 1851 Census for the 1841 family or any other likely William LOW's?
Who informed of the death of Jean LOW (dau of PETER/NICOL), and does her address tie back in with other members of the family.
Who was the child of your ggg-father William LOW who became your gg-grandparent?
For Ref:
John PETER m Jane FERRIER - married 18 FEB 1785 Arbroath, Angus
ISSUE:
Agnes PETER Chr 05 JUN 1786 Saint Vigeans, Angus
Robert PETER Chr 18 NOV 1787 Saint Vigeans, Angus,
John PETER Chr 16 JUL 1789 Saint Vigeans, Angus
Margaret PETER Chr 07 FEB 1791 Saint Vigeans, Angus
Euphemia PETER Chr 14 OCT 1792 Saint Vigeans, Angus (married 1825 St Vig?)
Anne PETER Chr 01 DEC 1793 Saint Vigeans, Angus
James PETER Chr 05 APR 1795 Saint Vigeans, Angus
Jane PETER Chr 02 JUL 1796 Saint Vigeans, Angus
Charlotte PETER Chr 30 OCT 1797 Saint Vigeans, Angus (married 1828 St Vig?)
Mary PETER Chr 21 AUG 1799 Saint Vigeans, Angus, Scotland
Charles PETER Christening: 14 JUN 1801 Saint Vigeans, Angus, Scotland
James PETER Christening: 16 APR 1803 Saint Vigeans, Angus, Scotland
Cheers
AMBLY