Rev. Horatio Townsend, (Pupil of Collins) Author 1813 ‘Statistical Survey Co. Cork’, Genealogy.

http://www.askaboutireland.ie/reading-room/digital-book-collection/digital-books-by-county/cork-county-1/townsend-statistical-surv/

http://www.astro.wisc.edu/~townsend/tree/record.php?ref=5D00

There is a reference in the family history to him and family members being taught by Collins. Probably not John Collins, ‘The Silver Tongue of Carbery’ even though he was a contemporary and in the area.