I search the IFHF's online database at ROOTSIRELAND.IE. It has abt 19 million B/M/D and other records for MOST Irish counties. Records before 1863 are increasingly sparse. By 1800, they are almost non-existant. Many B/M/D events either weren't recorded, or haven't survived.
For F(rancis), Eliz(beth), and Pat(rick) Murphy B 1823, 1826, and 1825 +/- 5 yrs, Co. Cavan, with a father forenamed T(errence), I found 0 records. It is likely that these records didn't survive, or haven't been transcribed yet.
For a T(errence) Murphy and ? Victory married anywhere in Ireland at any date, I found 0 records. Ditto.