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There are two townlands: Ardura Beg and Ardura More. Ardura Beg is over 200 acres and Ardura More is over 300 acres. I located this Cottage advertisement which mentions Roaring Water Bay.
The RC parish would be Aughadown/Aghadown and records start in July 1822 https://registers.nli.ie/parishes/0008
The records are on www.irishgenealogy.ie a free Irish government site which has the records for the parish of Aghadown and other parishes in the Diocese of Cork and Ross. (I assume you have used this site). This site also has images of civil records from 1864 on. Use the Civil Records Tab.
I did check for a baptismal record for Thomas, Samuel and Mary Anne and there was no record. Likely they were born and baptized prior to 1822.
I checked the Tithe records from 1830 for Kilcoe parish and there were a number of Connells in Crevolea North and South. There are no townlands by that name now and I'm wondering if Crevolea was an earlier name for Ardura or Corravoley likely the latter? One of these Connells could be the father of Thomas.
The 1852 Griffiths Valuation head of household listing for Kilcoe civil parish shows Thomas Connell in Ardurra Beg townland and Samuel Connell in Corravoley townland. http://www.failteromhat.com/griffiths/cork/kilcoe.htm
Let me know if you have any questions.