I thought for the longest time, up until the DNA tests were done in fact, that Charles Polke, IT, and William Polk/Margaret Taylor (my ancestor) were siblings.The main reason was because of the Polk names in the inventory of Charles Polke, such names as were part of the William Polk/Margaret Taylor line.But with the DNA, plus the fact that there is no connection in any records reviewed to this point, between Charles Polke and William Polk (other than the inventory - which may or may not be applicable, but then who are those people listed?) one just about has to go with the more obvious conclusion, they are not siblings.Yes, there is always the chance that there was the same mother, different father, but that has not even been suggested by the writers of the old Polk genealogies, never even hinted at, and there are no records in the many, many reviewed, which substantiate these two men were 1/2 siblings.My opinion, based on 25 + years of Polk research, is that the chances of these two being 1/2 siblings is really about zero.However, because there is the possibility, albeit slight, we continue to call on those Polks and other variations to have their DNA tested.
I noted your other query posted about a Nancy Polke who m. a Cox.I have 54,000 Polks in my db, including about every Polk(e) through 1880s and beyond, who was connected to Charles Polke and to William Polk, and the only woman I see who was named Nancy who m. a Gabriel Cox, was Nancy Gaston, who m. Squire Gabriel Cox, son of Benjamin Cox/Sarah Piety, Sarah the daughter of Austin Piety/Sarah Polke.
Charles Polke/Margaret Quaid had a daughter named Nancy Polke, c1812-1835.I have no husband for her.
The only other Nancy Polke I have is the daughter of Edmond Polke, she b. c1777, d. 1875, Nelson Co., KY.She never married to my knowledge.
Capt. Charles Polk/Delilah Tyler, had a daughter named Nancy, who m. Peter Ruby.
I am not addressing all the Nancy Polk names I have, there are many, many of these, but none associated with any Cox names, and with the families stemming from Charles Polke, IT.
I think it likely that in the text for that Cox genealogy, the names might have been messed up.Charles Polke, IT, did not have a daughter named Nancy, so Capt. Charles Polke, his son, could not have gone down the river with any such person, his only sister being Sarah (Polke) Piety.
These old genealogies can really get one started on a wrong track.There is lots of good info in them, but a lot of erroneous data, also.Later, Bill