Hi fishytales,
I cant find Judiths Christening but hopefully someone else can

Hopefully I am not going over what you already have but it will help others trying to find info for her.
James BUTCHER, Baptised 31 July 1814, St Bartholomew, Burwash, Sussex
Mother JUDITH, Servant, Abode Burwash
(Source FreeREG)
Marriage;
Judith BUTCHER
Henry PETTIT, 14 April 1818, Wellingh, Burwash, Sussex
(Source IGI + Familysearch Pilot)
Unless I have got this wrong she seems to be known as JULIA after this

;
1861 Julia is a Widow living in Burwash with Children still at home;
Jabis 1847
Levi 1848
She is born c 1797, Ashburham and a Housekeeper to Henry COLLINS
Marriage Reg from FreeBMD;
Henry COLLINS, December 1864, Ticehurst, 2b 145
On the same page is JULIA PETTET
Marriage Cert will provide her Fathers name
