Hi Riain:
Thanks for your query.
I had a quick look in Tulla and in Clonlea parish registers but I did not find anything definite for O'Connells. In Clonlea for Mary O'Shea, I found the following entry:
Mary O'Shea baptised 3 December 1841 from Claremount. Her parents were: Thomas O'Shea and Biddy McMahon. Her baptismal sponsor was Mary O'Shea. You can access this transcription via the Clare Library at this link: http://www.clarelibrary.ie/eolas/coclare/genealogy/don_tran/bmd/baptism_records_ocallaghans_mills_parish_N_R.htm
You can also view the original page on the NLI website at this link: https://registers.nli.ie/registers/vtls000634683#page/31/mode/1up The record is at the top of the left hand side of the page and the writing is very clear.
Let me know if you need further assistance. I did not see other children mentioned for this family, so they may have emigrated.
All the best,
Jane