Hoping that someone on the List will also be searching or will have some knowledge of the DeRenzy family.  My 2XGreat-Grandmother was Anne Derenzy...probably born c1820....married c1840 to James Holohan and living in Bagenalstown, Co Carlow on Kilcarrig St at the time of the valuation.  The couple were having children baptised at the Dunleckney parish from 1841.  If they were using the Irish naming pattern....Anne's father might have been named Thomas.    Info on any sighting will be appreciated.  I have seen her name spelt Darenzy too.  her parentage has eluded me for over 30 yrs.  Best of luck to all, Pat Zipf Jamesburg NJ