Looking for McNiff families

After exhausting online searches and sites, I'm looking for McNiff family members around Drumkeeran to reach out to directly.

Specifically, I am trying to determine which McNiff family had a Patrick McNiff leave the area back in 1845 for New York.  There were McNiff’s in Tullintowell, Lisnanaw, Drumduffy, Moneenatieve, Lisfuiltaghan, Glackaunadarragh and just a few other locations around Drumkeeran in 1901.

Looking to connect by email, snail-mail, text or phone with McNiff family member who know their family histories.