How the count works
James Rigby is the compiler’s seventh great-grandfather. Counting inclusively — James, then seven greats, then grandfather, father and self — gives ten generations. The older draft chapter on this site is titled “Nine Generations,” which counts to the previous generation; both are describing the same line.
Where the certainty sits
Generations 2 to 6 rest on wills, censuses, church registers and gravestones and are not in dispute. Generation 1 to 2 — James to Eli — is the joint that carries the most weight and the least direct evidence. No document names Eli as James’s son in so many words. The link rests on two compiled genealogies (Smedley 1901 and Harlan 1914, both drawing on family informants), on Eli naming a son Seth and a son James after his father’s household, and on the two men occupying the same small set of townships in sequence. It is the standard state of an eighteenth-century Pennsylvania descent, and it is stated here rather than assumed.
Collateral lines not shown
James’s other seven children have descendants of their own. Daniel (1757–c.1850) went to Ohio, and his estate was partitioned in Jay County, Indiana. Seth (c.1761–1854) died at New Castle, Lawrence County, and his ten children are the western Pennsylvania branch. Eli’s son George W. is the ancestor of the Rigbys who ran an undertaking business in Media for four generations. None of those lines is drawn here; they are held in the archive.