You should try writing to Carlow County Museum about finding information about The Bridge. You can find their contact details here: http://www.carlowcountymuseum.com/contact.html
There are Roman Catholic church records available for the diocese of Leighlinbridge. These date from 1783 for both baptismal and marriage records. You can find these at the National Library of Ireland, Pos. 4195, or the Church of Latter Day Saints, ref. no. 1363869. If you have any difficulty, you could try writing to the parish priest for more assistance.
You could also try checking the land records called the Tithe Applotment Books (1823-38) or the later Griffith's Valuation (1848-64). Griffith's is freely available here: www.askaboutireland.com or here: www.failteromhat.com Failte Romhat has lots of other useful links you could try looking at. Tithe Applotment Books (1823-38). Microfilm copies of the books for all of Ireland are available at the National Archives of Ireland (NAI) http://www.nationalarchives.ie/genealogy1/genealogy-records/tithe-applotment-books-and-the-primary-griffith-valuation/ or the Church of Latter Day Saints (LDS).
There is a document at the National Archives of Ireland (NAI) dated 1843, which lists Co. Carlow voters. (NAI 1843/55).
There is a book which might be of interest called, 'Schools of Kildare and Leighlin, 1775-1835', (1935), by M. Brennan.
There are estate records you could check. The landlord Vigors: Account book, 1826, National Library of Ireland, Pos. 7629. Most tenants. Covering areas in the civil parish of Oldleighlin.
This link might interest you (Patrician Brothers archive): http://www.delanyarchive.ie/ and this (Cross and Passion Order): http://www.irishconfraternities.ie/view_confraternity.php?id=57 and http://www.cptryon.org/scp/. De La Salle: http://www.therecord.com.au/site/index.php/Books/de-la-salle-brothers-in-australia and http://www.bagenalstownparish.ie/our-parish/parish-history/de-la-salle-brothers/
Please make sure you link anyone else in your family who is interested in their Irish heritage to our site - and indeed anyone else you know of Irish heritage.
Genealogist (Ireland XO)