I think I have the parents for your Mark Adams. My ggg grandmother, Hannah Pettit, m. Mark Adams in Philadelphia, PA, 19 Jan 1784.One of their sons was Mark, and the birth date fits with their other children.Mark was a Revolutionary War veteran with a most interesting history.He was born in Co. Derry, Ireland. A daughter, Elizabeth, married Joseph Champion. in New Jersey.The Champion family was engaged in iron smelting. Please contact me at .If you will send me your address, I will send further information.