Found another 2 children for you
Annabella WYLIE christened 1831 Middle Church,Paisley
and
Margaret born 1829, Paisley
The first one was taken from local parish records ut second one wasn't.
Not sure if you have their marriage details (william & catherine) but banns were displayed in both their parishes. Paisley 2nd dec 1822 and Perth 1st Dec 1822.
I don't know if you already have birth records for Catherine but i checked anyway and her mothers name was showing Katherine Peddie. She was christened (catherine) 9th Jan 1805 Moneydie.
I checked for her parents marriage and siblings also.
again the banns were displayed in both parents parish.
14th aug 1787 Moneydie and 29th July 1787 Methven
The only siblings i found for Catherine were
Christian (female) chistened 9th Jan 1803, Moneydie
Thomas christened 4th Oct 1807 Moneydie
Had a look for parents birth estimating their year of birth.
I found only one possible for Katherine
christened 4th may 1760 Monzie (not my spelling)
parents James PEDDIE and catherine CREARER
Couldn't find a marriage for this couple or any further siblings.
There were a few possible births for Catherine Pearsons father Robert PEARSON, but the one showing in Moneydie parish was christened 9th April 1758 parents Thomas Pearson (spelt person) & Isobel Dow
Here is the list of others though,
ROBERT PERSON - International Genealogical Index
Gender: Male Christening: 09 APR 1758 Moneydie, Perth, Scotland
(See above)
ROBERT PERSON - International Genealogical Index
Gender: Male Christening: 24 MAY 1759 Redgorton, Perth, Scotland
ROBERT PEARSON - International Genealogical Index
Gender: Male Birth: 31 AUG 1771
ROBERT PEARSON - International Genealogical Index
Gender: Male Christening: 08 SEP 1771 Forgandenny, Perth, Scotland
You will be able to see all the information i have given you at
www.familysearch.orgHope this helps you
Amanda