I just recently made the connection to the Blackmores in Western Pennsylvania.
My gr-gr grandfather was Robert Laughlin (He only had one full brother Fitzsimmons "Simmons" Laughlin)
Robert was the son of Benjamin Laughlin and Elizabeth Blackmore(Elizabeth's 1st marriage was to Samuel Mackall-she was a widow with children when she married Benjamin)
Elizabeth Blackmore was the daughter of James Blackmore (1764 (or 65) to 1800) and Mary Dawson.
From there I have some confusion and need some documentation.I've read all of the postings and from what I can tell James' father was Samuel Blackmore Jr. and mother, Abrilla Dowden.
All of this makes since because I just returned from a trip to the Georgetown Cemetery where I found Elizabeth Laughlin's grave and James Blackmore's grave with dates that all match up.The first grave in that grave yard was for a 2 yr old child named Abrilla Blackmore who was killed by indians--which I believe was James' and Mary's first child.Many Mackalls and Dawsons are also buried there.
Anyway--does anyone have any documentation or research that can back this all up and get me farther back???