I research the Irish Family History Foundation's database. It contains 12,000,000 surviving rcds for abt 65% of Irish counties. Rcds are increasingly sparse B4 1840, rare B4 1800.
Note 1 - Without a KNOWN county, the chance of an ancestor's rcds NOT being in this database is AT LEAST 35%.
Note 2 - Only 1/2 of Co. Cork's rcds are in this database.
Note 3 - The RC church kept control over most parish rcds from Tipperary (north). These are ONLY available thru the Tipperary Family History Research center at a substantial fee (regardless of outcome).
For Marg(aret) Scully M 1832 (exact) in Newmarket parish, Co. Cork, I found 1 rcd.
For Dan(iel) O'Connell M ditto, I found 2 rcds.
These are likely for your ancestors. A view of the detailed rcds should show which of the Daniels married Margaret. The detailed rcd SHOULD show their parents' names and other info. This info may let you trace your ancestry back another generation.
For Mart(ha) O'Connell B 1846 (exact) somewhere in Ireland with a father forenamed Daniel, I found 0 rcds.
For Cath(erine) O'Connell B 1836 ditto, I found 1 rcd in Newmarket parish.
For Bri(dget) O'Connell B 1839 ditto, ditto.
For Marg(aret) O'Connell B 1842, I found 0 rcds anywhere in Ireland.
Google the Foundation's name to lead you to this database. Register, opt to be notified as rcds are added and browse. Pls post your search results to my genforum msg.