Possibly the swiftest route to your roots.
Irish genealogy website directory.
www.from-ireland.net/parish-records-marriage-1873-rathdowney-laois-queens/
Description:
The Roman Catholic parish records for Rathdowney in Co. Laois (Queen’s Co.) begin in July 1763. This is an index to the names of those who got married in the Rathdowney parish church from Feb 1873 to Nov 1880. This set of records extends from the end of May 1840-Nov 9th 1880. The National Library of Ireland film ref for this set of records is 5014. The LDS do not have a copy of this film according to my records.
