St Brides Glamorgan

[annem]

Can anyone tell me anything about St Brides Glamorgan.
I have a Mary Ann Willis who on the 1851.'61,'71 and '81 census puts
St Brides Glamorgan as her birth place and 1804 as her year of birth.
I really would like to know who her parrents were.
Can anyone guide me as to how I find her baptism records

[annem]

Have found the Glamorgan family history society.
Who for a small sum have the parrish index's
for St Brides Major: St Brides Minor and St Brides Super Ely.
So problem solved. 
She should apear in one of these.