It seems that I did, in fact, retain the essence of that message. All I had to do is find it and augment it with additional references. So, here for your records, is the amended post:
For many years, the maiden name of Christian, wife of the 2nd Robert Abernathy, has been presumed to be Tillman (or Tilghman, as some may spell it). The basis for this is presumed to have been the will of Susannah Tillman dated 19 Nov 1716 and recorded 12 March 1716/1717. This will was supposed to have transfered to Robert Abernathy something like 1,800+ acres of land initially having been granted to Roger Tillman. But it clearly does not ! !
In her will, Susannah lists her children: son Thomas Parham, Son George Tillman, Son John Tillman, daughter Jane Robinson, daughter Christian Abernathy, and two grandchildren: Mary Bethell and Robert Abernathy. The Robert Abernathy who was made executor of the estate (and received the bulk of it) was one and the same as the son of ChristianAbernathy and was identified in probate records as Robert Abernathy Jr. Which means that he was the individual we now called Robert 3rd.
On the basis of that will alone, there was not one shred of evidence of the birth surnames of any of Susannah's three daughters (Jane Robinson, Christian Abernathy or Mary Bethell's mother, presumably deceased). Thomas Parham got an iron pot and some kitchen utensils, George Tillman got 2 shillings, John Tillman got a feather bed, a bolster, a rug and one other illegible item, Jane Robinson got 2 shillings, and Christian Abbernthy [sic] got all her mother's clothing plus kitchen pots and utensils. Grandaughter Mary Bethell was to receive a yearling heifer at age 16 or when she married. The remainder was to go to Robert Abernathy, her grandson and executor.
A survey record for the 1717 transfer of land, in combination with the will, provides the critical evidence: the deed transfer of 15 Jul 1717, which pertains to the 100 acres on the south side of Sappone Creek adjoining Maj. Robert Mumford's land was surveyed for transfer to Robert Abernathy, and is clearly marked in the survey book as "100 ac platt of Thomas Parrum's land alias Robert Abernathy's land", and was granted to the 3rd Robert on 15 Jul 1717 [src: Library of Virginia Land grants on microfilm images, Lib of VA website].
Due to the less than stellar quality of the microfilm image of page 6 of the survey notes [Surveyor's Platt Book, Prince George County, 1711-1724, on microfilm from the LDS sources], it was difficult to determine the exact meets and bounds, but there is no question about which family the land was owned by before being transfered to Robert Abernathy as a result of Susannah's will, nor from which family it had come: it had previously been held by Thomas Parham and not Roger Tilman.
For me, the issue is settled: the 2nd Robert's wife (Christian, as spelled in the 1716 will of her mother) was born a Parham, and was not the daughter of her mother's second husband.