Looking for information on Andrew Calhoun born in Ray, County Donegal, Ireland. He married Martha Chamberlain (no dates). He died in Concord, New Hampshire. He was a Presbyterian and an elder of the Reformed Church at Canajoharie, NY. I am looking for the connection to Andrew's parents. Andrew was the grandfather of Lt. James Calhoun who fought along side George Armstrong Custer in the Battle of the Little Bighorn.