Hi,
Do you mean Co Limerick or Co Cork?
I would check the Geary families in the Griffith Valuation which in Cork was taken between 1851 and 1853 and in Limerick in 1853.
There were 116 GEARY households in Co Cork, 16 in the city and only 13 in Co Limerick, 13 in the city.
Do you know the children's names? It was traditional to name the second son after the mother's father so you could check that.
Kate