1975 marked the canonisation of St
Oliver Plunkett, a Catholic archbishop who was killed during the Popish Plots in the late 17th century. There are quite a few instances of the Catholic Church impacting the popularity of names in
Ireland. When 1954 was proclaimed a
Marian year (a year for revering
Mary, mother of
Jesus) the name
Marian briefly became one of the most popular names in the country, with 12 girls named
Marian born in 1952, 287 in 1953 (the proclamation occurred in 1953) and 4,811 in 1954. The name
Mary itself only barely retained first place, with 5,021 births. The official statistics only go back to 1964, so this data is only evident from the birth index. There's another much smaller jump for
Marian in 1987, as that year was also proclaimed a
Marian year.