Hello Eli G,
Some of the Parish Registers of Caerhun can be seen on Freereg.
http://www.freereg.org.ukThere are 2 baptisms for Catherine EVANS there in the 1820s.
02/03/1823 Catherine EVANS daughter of Rowland and Dorothy EVANS.
22/03/1829. born 21/02/1829. Catherine EVANS daughter of Timothy and Anne EVANS. Mother's maiden name was PUGH. This at Tal y Bont (Cm) church.
Rowland and Dorothy EVANS also baptised:
Evan EVANS at Caerhun on 11/03/1821.
William EVANS on 22/08/1819.
Jo