There are lots of CALVERTS around the Strabane area of Northern Ireland (camus Parish) where my own Great Grandfather Hugh CALVERT was born. His father Hiram CALVERT is known to have been in Strabane in 1858, but is thought to have been buried in Pensylvania. There are other clusters of CALVERTS in Armagh, but I have heard that all Irish CALVERTS are related. If you find a positive Irish link, you might try the Strabane area. Regards, Jim