O'Connell Clashbane

Hello all,
I'm trying to gain information of my Grandmothers family. Mary O'Leary (O'Connell) lived in Clashbane born 1928 died 1992 aged 64. She later lived in Knockgrena, Old Pallas with my grandfather and family.
Her parents where Patrick and Bridget O'Connell.
She is buried in Hospital graveyard with her father Patrick and son Pat.
Also in the grave are Patrick Walsh died 1950 and his Mother Margaret Walsh died 1954. My father thinks these were distant relations of ours and known as 'Welsh's' I have no information on this family, I assume they lived nearby or with my family at some point.

Any info would be great.
Thanks,
Adam O'Leary