Hi, My gr grandfather was Daniel Snee of Coolaney, Co. Sligo. The Rockfield you mentioned is right there. In fact, I've been there.
Dan (b act 1846) had a sister named Mary (b abt 1854) who married an Edward or Edwin McCarrick. I believe they married in the US but I've wondered if he came from the Coolaney area also. In any case, they were in Jersey City, New Jersey by the 1870's. Ed apparently died prior to 1891 but I have not been able to locate a death record for him. Mary and their remaining children lived in JC until at least the 1910's according to the census.
While the McCarricks are not a direct ancestor of mine I would like to find if they have any descendants.
Regards, Kathleen