Hi Betsey, I am a decendant of John Douglas, born 1755 in Scarborough, Mass. His father was Elisha
Douglas who was the son of John Douglas of Middlebrough. On John Douglas of Middlebrough, born 1695, the info I have at this point is from the Howes family that a Lord Hamilton died in Paris in 1681, and he couldn't be the father to John Douglas that John Lufin Douglas claimed in his book on the Douglas family. I ask another question about the book and there was no valid researching when he wrote the book. Researchers in the US in those days had no means to research records in Scotland. I am very much interested about this DNA testing of the Douglas family. I did a DNA test for Ancestry and I have results that gives percentages of my DNA makeup of my father's and mother's side. It is on my mother's side where I am a decendant. 

 Betsey, my DNA  results from Ancestry are from an autosomal test, which test both my father and mother's side. My mother was a Douglass whose family came from Sebago, Maine. I think I have a connection with Bruce's side as my great-great grandfather was the brother to Seth Douglas who Bruce Douglass is connected with. With Ancestry I see no connection yet. I don't think there is any correlation with the Y test that Bruce took to find out that he had a connection with the William Douglass , born 1610 in New London. But this is getting interesting and I hope we can find some records of some sorts with this William Douglass family in the US and in Scotland. At least there is something to research at this point in finding a connection to John Douglas of Middleborough, Mass.

I'm trying to find primary records for which William Douglas/s is father to Capt. Aaron b. 1753 m. Phebe Lewis. He died in NJ, she moved with most of their kids to Knox County, Ohio.

To do this, I'm tapping both NJ and CT sources to try to find record of his ancestral migration. I'm interested in your Rogerenes theory. We've also established by maps and historical accounts another possibility: an ore/gold rush mid-1700s in Morris County, NJ.

The sole Douglas Rogerene mention I found so far seems to have come to NJ about 50 years earlier, but was in the line of William b. 1708. Like you, I believe Aaron's father is William b. 1710, a first (?) cousin). Strong evidence from birth/name patterns show Aaron's father William came to NJ to marry his brother Joshua's widow, who had 3 toddlers in the small area called Comb's Hollow, exactly where we find Aaron's dad starting his family about a year after Joshua died, with a wife by the same first name as Joshua's Sarah (Foote). My William's wife has no formal record of a surname except Douglas, which makes sense if she was widow Sarah Foote Douglas. Perhaps a reference to Aaron being buried beside his brother(s) refers to his half-brothers, Joshua's two sons, if William 1710 married his brother's widow.

I'm preparing to look into Rogerene history more at the Morristown Library soon. Any background you know would be helpful. If you have unresolved questions, fill me in and I'll look for answers. The Presbyterian church where at least one of Aaron's sons and at least one presumed half-brother are reportedly buried is next door to the library, too.