Stephen:
Welcome to Ireland Reaching Out!
Civil registration of births did not begin until 1864.
I checked on the free site www.irishgenealogy.ie I located an 1828 baptismal record for a James Cripps in the Roscarbery area, however, the record was in the RC church. See below. I did not see an Ellen Cripps record around Bantry in the 1830s. If they were baptized in a Church of Ireland parish, the record may or may not be available. See this link which shows the status of Church of Ireland records. Many records were lost in the 1922 fire at the Public Records Office, some are held locally and other are at the Representative Church Library in Dublin.
https://www.ireland.anglican.org/cmsfiles/pdf/AboutUs/library/registers/ParishRegisters/PARISHREGISTERS.pdf
Roger McDonnell
Area - CORK & ROSS (RC) , Parish/Church/Congregation - ROSSALETTIRI & KILKERAUNMOR (ROSCARBERY & LISSEVARD)
Baptism of JAMES CRIPPS of ROSS on 16 May 1828
NameJAMES CRIPPSDate of BirthN/R N/R N/RAddressROSSFatherJAMES CRIPPSMotherELLEN DRISCOLL
Sponsor 1BOB CUSHINSponsor 2MT DONOVAN