I have researched the possible connection of Lt Col Edward Douglas, of Northampton, Va to Col Edward Douglass in depth using the existing colonial records of Virginia. While Edward Douglas b about 1590, did have a son named Edward, primary records show that Edward the son, who was named in Lt Edward Douglas' 1657 will, and who was still a minor at the time, died unmarried and without having children. This means that he could not be the father of the James Douglas/s, who is indicated in numerous family trees as being the father of Col Edward Douglass. Additionally, James Douglass, the younger son of Col Edward Douglass 1713-1795 stated in his memoirs that his father, Col Edward Douglass was born in Scotland. That fact alone would rule out Col Edward Douglass being born in Virginia, which is what would be expected if his father were James, son of Edward, son of Lt Col Edward Douglas, husband of Isabella Dale. My research, which can be reviewed in greater detail, along with supporting sources, leads me to believe that that Col Edward Douglass is not the son of the James Douglas/s who is said to have married a Lena Ball, and said to be the son of Edward Douglas, son of Lt Col Edward Douglas There are no sources that support this lineage and in fact the sources that do exist indicate Edward Douglas had no son named James, or that Edward ever married. No verifiable sources or documentation has ever been produced that conclusively identifies the parents of Col Edward Douglass 1713-1795. If you will notice, all the web references that propose this James Douglas as the father of Col Edward Douglas give no sources or hard evidence to support this claim making such a claim unsupported and questionable. Please review http://www.wikitree.com/wiki/Douglass-957 for additional information.
However, recently I found some evidence in Scottish parish records that may contain important clues. I have researched Scottish birth and christening records and believe I may have potentially identified Col Edward Douglass' parents, however my findings are not yet conclusive. I am still in the process of researching this information further. This information along with supporting documentation and sources can also be found at http://www.wikitree.com/wiki/Douglass-957
Additionally, I have researched the line of Lt Col Edward Douglas of Northampton, Virginia and documented my conclusions regarding the connection of these two Douglas/s lines. Joining me in providing invaluable information on Lt Col Edward Douglas' and his line was Henry Barraud Hunt, Jr, a descendant of Lt Col Edward Douglas, through his daughter. The link between Lt Col Edward Douglas and Col Edward Douglass seems to have been originally proposed in a book published in 1979, by Ruth Eleanor Poole Harris. However, I believe this line is in error. For more information on Lt Col Edward Dougllas 1590-1657 and the oft proposed connection to Col Edward Douglass 1713-1795 you should review http://www.wikitree.com/wiki/Douglass-1127
If possible, I would like to connect your Douglass line to the existing Wikitree family of Col Edward Douglass. Please consider joining the Wikitree family. Your efforts and collaboration on the line of Col Edward Douglass would be appreciated. I can be reached at firstname.lastname@example.org if you have additional questions or information.