THO. MUSTAIN is supposed the 'Immigrant' as far as I know there are no others of the name who precede him. Mary is generally believed to be at least 2nd generation in VA. her father given as Edward Haley, there is also a claim that they are of the Haley family that formed the basis of Arthur Haley's book 'Roots '. I have not investigated any of this in any depth, i am a direct descendent of Thomas and Mary through their daughter Milly who married JesseeKeesee. There is a great deal of information on-line about these families who established roots in Pittslyvania Co. VA. bev in toronto