I have found a possible set of parents for Thomas Mattingly who was in Washington DC during the 1850 census.The difficulty is that the census states that he was born in Virginia.We all know census records are often wrong and that may be the case here.Anyway, I know that James Barton Mattingly and his first wifeildred Nevitt, had a son named Thomas who was born before 3-31-1777, based on his will as follows:
"Last Will & Testament}In the Name of God Amen.I James Barton Mattingly of the Parish of St. Andrew, St. Mary's County State of Maryland being at this time Sick in Body but Sound mind to that I easily think that that Lord God hath appointed shortly to lead me out of this World I therefore have determined to make this my Testament and commit the Same to writing my last Will in the form following~~~as touching the Slender Patrimony Which God hath given me concerning Which I have determined that to dispose~~~Infinnis;I give to my Daughter (Pann) after my death & my Wife that is today if my wife Should be the longest lived my land that I now possess (illegible) & called Truth and Trust (plesant devils?) and (St. Maryarett?) my meaning is that during my Wife's Widowhood She Shall be possessed with the Land but if She marries again or dies then my Daughter Pann, Shall be (undiably?)be put in possession of the Land together with the one Eight of my personal EstateThe balance of personal Estate I give to my other Children that is today Stephen/ Ann/ Thomas/John and my grandchildren Joseph and Mary Johnson.Lastly I make and constitute my friend W. Thomas Morris Executor of this my last Will & Testament Written this 14th day of September Anno Dommino 1807.
His Sealed published and declared by the SaidJames BartonXMattingly James Barton Mattingly and as his last will andmark Testament in the presence ofhis Thomas Morris~Matthew Morris~Thomas NormanXMartin mark
Saint Mary's County to wit, The 8th day of March 1812.Then came Jemima Mattingly and made oath, that the within instrument of writing is the true and whole will and Testament of James Barton Mattingly, late of Saint Mary's County deceased, that have come to her hand or possession, and that she doth not Know of any other.