I kept a clip from David Horton of this List, who mentioned there was an Abraham Horton, "born c1722 whose earliest record starts in Philadelphia and Bucks County, PA." Maybe David can update us, but I believe "earliest record" implies a tax or property transaction (therefore Abraham was at least age 18 and 1722). Also, I have Hortons myself who lived not far from Philly, in Cumberland County, NJ. I descend from an Isaiah Horton who was born between 1803 and 1812 (sources vary), probably in S. Jersey. So far I believe Isaiah's father was John Humphrey Horton who died in South Jersey in 1834. He went by Humphrey and even Umphrey/Umfrey. He appears in Cumberland County deeds by 1802, but I have not yet gone to the NJ Archives to see if there were earlier references. Isaiah named sons George W. and Jonathan, and had a daughter Mary. Records call his wife Dorcas, Leorcus, Patience and Patience Dorcas, then she's missing in the 1870 Census (although Isaiah is called Married). Someone put her Patience name in the IGI, but this may have simply been based on a single Census. I found Jonathan buried at Head of the River, and my George W. (1839-1862) was originally buried at Trinity in Millville, then reinterred at Mt. Pleasant. One source says Humphrey came down from New York or New England, but his whereabouts before 1802 could be from any direction. It's worth comparing our info and hunches.