Sub-Groups of GFG1
Sub-Groups are formed when individual lineages have ties to a specific Guthrie Family Group, but the Y-DNA results in a genetic mismatch. These may be the result of adoptions, false paternity, feudal law or other causal events.
Guthrie Family Group 1B
Descendants of two sons of Charles Jackson Guthrie 1853KY-1896TX do not match the YDNA profile of Guthrie Family Group 1A. The most common surname match is Pyle/Pile.