I am new to your list. I have a 3rd Gr. Grandfather, Christopher Barr from Washington Co., MD, that I don't have much on. I have no idea who his parents were or his birth date. All I have is proof of his marriage to Barbara Toby on 13 Apr 1809 in Washington Co. I received that from the Maryland State Archives. From an 1840 Census from Ohio, I believe he was born somewhere around 1775 and Barbara abt 1785. They had 1 son, John born 1 Apr 1810 in Washington Co. From MD they moved to Ohio where John married and had a family. In 1853 John and his family and his mother, Barbara moved on to Iowa. I have very good documentation on John and everyone to this day but poor old Christopher remains a mystery. I hope someone reading this message might have a clue to where we might find some information. I would love to hear from you!! Ruth Tysor SW Iowa MD