Well, if we are I can't quite see it. But I do have the the 1 Alexander woman for whom I don't have a husband listed: Lucy Wyatt Alexander - d/o Robert Alexander & Elizabeth [Smith] Alexander Jr. - b. ca. 1790-1800, probably in Warren Co., NC - ca. 1800 her father, Robt. Alex. Jr. died, Warren Co. NC - 11 Nov 1801, she was listed on a Guardian Bond of neighbor Amasa Palmer in Warren Co., NC
... and I have 1 Alexander man for whom I don't have a wife listed: John Alexander - s/o Col. Robert Alexander & Martha [LNU] Alexander Sr. - an uncle to the Lucy Wyatt Alexander above - brother to Robt. Alex. Jr. above - b. ca. 1766-1774 - may have moved to SC, GA, MS, &/or TX (pure conjecture) - 1790, listed as Head of Household & living in Warren Co., NC in the Hawtree Dist.
I cannot find any connections with Woodham, Branon or Galloway. Nor did any of this family move further south into NC as far as I can tell.
Well, I hope the above is not a waste of your time. These Alexander's were (virtually) all slaveholders, at least from the 1730's through 'til 1865 in VA, NC, GA, & AL. I have the names of a few slaves in 2 Wills from 1784 & 1853, respectively, if any of that info would be useful.
Last, yes I know of Asa Alexander; no connection with my guys. The 1769 Tax List was in which NC county? That might be interesting...