Allen Family Dilemma

Sorry all for not posting in so long.  I am stumped by some of the DNA findings, and have been searching - so far in vain - for any information to solve some of the questions that have arisen.

The DNA tests have confirmed that we are descendants of the illustrious Allen - Lewis - Warner - Dozier families of Virginia, but there are some missing links, two to be exact.  I can trace the Allens back to Robert Scott Allen, my 2nd great grandfather, but the proven ancestry then skips back two generations.

In our family tree, I have established the two missing links, but have no documented proof other than other family trees (which also have no documented proof).

Here is the line of descent as I have it so far:

Teresa Zaun, b. 1954, Norfolk, full circle back to Virginia!
^
Virginia Crofford, b. 1932, Waukegan, Illinois
^
Teresa (nee Ethelyn) Allen, b. 1893, Illinois
^
Augustus Dozier Allen, b. 1859, Illinois
^
Robert Scott Allen, b. 1797, Lunenburg, Virginia (d. 1864 - Civil War?)
^
John Watson Allen**, b. ????, Lunenburg, Virginia
^
Turner Allen**, b. 1751, Lunenburg, Virginia
^
William Allen*, b. 1724, New Kent, Virginia - m. Mary Lewis, daughter of Col. Charles Lewis of The Byrd of Goochland County, whose mother was Elizabeth Warner of Gloucester, and whose father was John Lewis, both of whom are buried at Warner Hall.
^
Robert Allen, Jr.*, b. 1704, New Kent, Virginia
^
Robert Allen, Sr., b. 1680, New Kent, Virginia (records in St. Peter's Church registry)

                                                *proven by DNA **no documented proof

Here is the reasoning behind my conclusions about the two ancestors in doubt:

I believe that John Watson Allen is correct because he was married to Rebekah Scott, whose mother was a Dozier.  The Scott and Dozier links were confirmed by DNA and the names were carried on in the next generations.  I do not know where the Watson name came from and I'm not 100% sure that was his middle name.

I believe that Turner Allen is correct because he is the only son of William who stayed in Lunenburg County, Virginia, where Robert Scott Allen was eventually born.  I know that Turner had a son named John, but that name was pretty common in the Allen family. Sorting them all out is a challenge!

So, there you have it.  I believe I am correct, but as far a proof goes, I am stuck.  I may have to start using other resources than those that can be found online.