Les, Newspaper cuttings are to be found in 1. Rosemary ffolliott Biographicl Notices 1758-1827 and 2. O'Kief Coise Mange (15 Vols) The first is in typescript and the second is an early example of desktop publishing (1950's). Cork City Library has both.
I did a lot of research in the Alleyne deeds in the Registry in Dublin. They show clearly that Samuel who m. Charity Pennefather in 1765 and John who m. Mary Hyde in 1768 were brothers. In a lease dated 14 April 1779 Walter Atkins to John Alleyne 500 acres IPM at Coolprevane for 3 lives John lists his 3 young sons, Samuel, John and William.
Samuel m. Ellen Scully in 1800 and d. in 1841. They had three children, John. who inherited Coolprevane, William and Ellen. I know nothing about what happend to the other sons, John and William. I just wish the family had a wider choice of names. Anthony