From A Topographical Dictionary of Ireland, 1837, by Samuel Lewis

HERBERTSTOWN, a village, partly in the parish of BALLYNARD, and partly in that of CAHIRCORNEY, barony of SMALL COUNTY, county of LIMERICK, and province of MUNSTER, 6 miles (N. E. by N.) from Bruff, on the road from Limerick to Hospital. It is a constabulary police station, and has large pig fairs on Jan. 15th, March 17th, June 28th, and Nov. 7th. Here is a large R. C. chapel, which was erected in 1836 at an expense of £800.