I am search a New York family with roots in both Scotland and Ireland. Oddly enough, we have Jane Elizabeth Greer in 2 generations. The father of the first is Matthew Greer and his father was Archibald Greer. Mathew Greer (born ca 1816) died in Sligo, Ireland in 1875 but may have lived in Scotland earlier in life.
We are unsure of the origin but it seems likely this family was from Scotland or perhaps moved between N. Ireland and Scotland. Seems a bit of a long-shot but do you see any possibility of a connection?