I am researching Quinns from Downpatrick so have saved a lot of information
27 Jun 1913, Killyleagh Roman Catholic Church, Killyleagh Parish, Downpatrick registration district- Thomas QUINN to Mary Catherine HILLOCK
On the Ulster Historical Foundation marriages, the father of Thomas seems to be John and Catherines Father is Patrick. Hillocks can be found 17 in Marchioness Street (Falls, Antrim) on the 1901 census
Another marriage that may be of use is
2 Oct 1881 Killyleagh Roman Catholic Church- John QUINN to Catherine DORIAN
Killyleagh was once in the parish of Kilmore and the records are in Crossgar RC Church.
If you need more help I can look through my information for you
Eileen