Quin of Creegan, County Tyrone and the Corr's of "The Rock" Desertcreat

Hello fellow Quin researchers.  I'm trying to fill in the early years in my Quin line. I have an old family scroll :

The Quins of Creggan, of County Tyrone dated 1899 by E.W. Keegan

unknown Quin of Creegan m: Miss Corr of "The Rock" Desertcreat no dates 2 sons, Turlough & James

Turlough (Torlough) Quin m: unknown -2 sons, 1 daug., 1 son joined priesthood no dates

Michael Quin b: Carrickmore 1840 m:: Eleanor Hamilton daug. of Sir John Jamesl Hamilton  d:1846- 10 children

Charles Quin Esq. Moneymore Hse, Moneymore b:1790 d:1846 m: Mary Quin (his cousin) b:1790 d: 1841-10 children

John Feleil Quin b: Tyrone 1823 d:1887 NJ m: Mary Anne Butler b: 1834 USA

-John immigrated 1850 NJ and finished his law degree.

and I 've got it from here down.

On the scroll it reads:

In ancient times, when the Great Earl's of Tryone, the O'Neills of Tir, where at the height of their power, looked to the sept of Quin of Creggan, who were noted for their fine physique to furnish their best and most dashing riders. The Corrs on the other hand, were distinguished by their mental qualities and from them the "Brethons" "the law givers" where choosen.

I'm hopefull that maybe someone might have some imput on those early generations. Records are scare but of found a few details on census'.

Thank you.

Christina