Marie, in the Griffith's Valuation, which for this location seems to have been in 1852, in the Barony of Forth, Union of Enniscorthy, Parish of Barragh, the Townland of Moneygrogh (so spelled) seems to have been entirely occupied by Bayleys leasing from Sir Thomas Butler, Bt. Edmund Bayley had a bit over 45 acres and Elizabeth Bayley (wife, sister, mother?) had a bit over 30.
The site is adjacent to the old Barragh Church, even then described as in ruins, with a graveyard.
I found this enticing connection to that church:
alexander eaton my great-great grandfather married ellen neving on oct 23,1861 in barragh church,barragh parish,county carlow. church of ireland ceremony. the marriage certificate states that alexander was of full age ,a widower,a schoolmaster,and that his residence at time of this marriage was barnahask,county carlow.it also states that his fathers name was george eaton a farmer. [http://genforum.genealogy.com/eaton/messages/6087.html]
I don't know if this has any significance.
In Carlow Town, a Robert Bayley and a William Bayley are shown to have been lessors of properties in Athy Street and Tullow Street. Bill.