Email from another Adamson descendant, Paul Fuenning <email@example.com> lists some curious information about the family of Simon. No sources furnished. He listed sons Jesse & Enos as born in Fairplay, SC in 1758 and 1760; then listed a Joseph born in 1775, also in Fairplay SC. The children in between born in Randolph Co NC, Orange Co NC, then TN, but again he has children born in TN before some of those born in NC. This makes no sense with any other Adamson information I have found as I know of no residences for Simon and family other than PA then perhaps VA, then NC, and on to TN as the usual migration pattern follows.
Probably the Simon Adamson found in Orange Co NC along with Jesse Adamson: Colonial America 1607-1789 NC Census Index.
Simon married "out of unity" and left Bucks County, first to North Carolina and then to Tennessee. His first wife is listed as unknown by Judy Dye, Mary T. is listed in other references. So many Larkins are in the neighborhood and this name is subsequently used as an Adamson given name - perhaps the first wife was a Larkin. He had a second marriage to Eleanor ?Lewis about 1766. She is supposed to have been a widow, perhaps Eleanor Moon, or was she a Larkin? There is also the possibility that she has been confused with Eleanor Routh, wife of Simon Jr - two daughters Elizabeth & Martha often listed for Simon Sr. were more likely children of Simon Jr as named in his Will, instead of daughters of Simon Sr. Sometimes a son David is listed for Simon, but I have found no indication he existed. One database had a wife as Margaret Patterson - again with no proof whatsoever.
Tax lists in Tennessee are confusing given the fact that multiple Simon Adamsons were present. Both Jefferson and Knox Counties were formed out of Greene & Hawkins Counties in 1792.
I have actually found a later record for Simon, Sr. at the "Digital Library on American Slavery". A petition, #11481738, was filed to the Senate and House of Representatives of the State of Tennessee, in Knoxville, in 1817. Forty-one petitioners argued that slave owners should be permitted to free their slaves on terms which will not involve them, nor their estates, for their maintenance. And they proposed a law to declare all descendants of slaves, born after the passing of the law, shall be free at a certain age which your honourable Body may fix upon. Signers to the petition included John Adamson, Jonathan Adamson, Simon Adamson Sr, and Isaac Williams.
SIMON ADAMSON and ?Mary T. [ADAMSON] had the following children: