Jon:
The townland was likely Cultiafadda in Boyounagh civil parish which includes Glenamaddy.
Unfortunately, church records for the RC church in the area do not begin until 1838.
I looked on the 1856 Griffiths Valuation head of household listing for the parish and there were no Noons. Either John was deceased, had emigrated or he did not lease land large enough to be included in the Griffiths.
There were no Noons listed in the 1901 census for Cultiafadda.
Let me know if you have any questions.
Roger McDonnell