It seems pretty clear to me that Mary (Strickland) Keaton Griffin is a match to Gadi's daughter Mary (Strickland) Keaton Griffin -- with the exception that 1) the first profile is saying Mary was Indigenous and 2) the first profile says Mary wasn't married to Dempsey Griffin.
Regarding the first, we now know that Mary's father Gadi was not Indigenous -- he was incorrectly connected as the father William Riley Stricklin, whose DNA is clearly Indigenous. So if the assumption is that Mary was Indigenous through her father, that's ruled out. I've not found anything saying Elizabeth Burnside, the correct mother (not the Elizabeth Newsom listed here), was Indigenous; she appears as white on records. What are our sources? Can we please add them?
Regarding the second, the Strickland and Griffin families seem pretty convinced that marriage and the subsequent children happened. :) I'm going to work on citing them all, but I'd like to know why -- and with what sources -- others are eliminating it. Especially since she's listed on Dempsey's pension, their marriage record survives, and both of her marriages are documented (right down to who performed the second marriage) in the records of the Huxford Genealogical Society.
Thanks in advance to everyone for your help in cleaning up this area!