Fiona, Are you aware of Quin family trees eg QUIN in volume 14p175 Newry,
QUINN in volumes 34 and 91, which are in the Blackwood Family history manuscript trees in the Linen Hall library, Belfast. I suggest you ask them for photocopying estimates if they think your knowledge relevant and be prepared to pay the extra for post and packing. However if the material is really relevant when you get it, I suggest a generous donation to this unique library that is always needing extra funds. Linen Hall Library,17 Donegall Square North, Belfast BT15GB, Northern Ireland, Telephone: +44 (0)28 9032 1707, Fax: +44 (0)28 9043 8586, Email:info[at]linenhall.com.
A family of Quinns who lived off the Malone Road, Belfast in the 1940s or 50s had unusual pets the then very scarce Irish Wolfhound.
Good Luck, Jim