O'Quinn was to be found in

1659 Census

Quinn/e was to be found in the baronies of

1830 Tithe Books

Quin/Quin was to be found in all baronies

1848/49 Griffiths Valuation

Quinn/Quinn was widely distributed in the county, the greatest concentrationwas in the Barony of Rathdown with 29 households.

1890 Birth Index

The principal surnames is listed, they are in order of the numerical strength in which they occur. The figure after the surname is the number of entries in the birth index for 1890. The estimated number of persons of each surname can be ascertained by multiplying the figure by the average birth rate, which for that year was 1 in 44.8 persons.

Doherty 80, McLaughlin 68, Kelly 50, Bradley 40, Brown 36, McCloskey 36, Campbell 33, Mullan 33, Smith 31, O'Neill 29, Kane 26, Moore 25, Gallagher 23.