When Edwin Brockholst Livingston sometime before his 1920 second edition of his book 'The Livingstons of Callendar and their Principle Cadre' (which actually was only half of his original 1887 edition, because he had republished the other half in 1910 under the new title of 'The Livingstons of Livingston Manor' (the New York line).
When Edwin became aware of the existence of John Livingston, the elder (as he called him) who was John Livingston III of Poropotank Creek and that John III was a vestry man of Stratton Major Parish by 1735, he also became aware of other things - that John the Elder (John III) had a son John Jr. who married a Frances Muscoe and that they had a son named Muscoe Livingston who had dealings with the NY Livingstons and he even noted that John the Elder (John III) was involved in trade dealings with the Livingston merchants of Aberdeen, Scotland, he also discovered that John the Elder (John III) had a brother, William, who had started in Williamsburg, Virginia, the first theatre in the U.S. to feature British theatrical type plays. He discovered that the birth dates for this John the Elder (John III) and William, his brother, were within a very few years of the birthdate given for two of the sons of William Livingston, the Merchant of Aberdeen and wife, Bessie. In the case of their son, John, he was born in 1684, while John the Elder (John III) of Poropotank Creek, Virginia, was born in 1688. The Williams were also just about that far off in birth years. The Aberdeen Livingstons descended from the Kirkland line (via the Delajoy line) and the NY Livingstons (who had ties to Muscoe) also descended from the Kirkland line - the Kirkland line descending from Dunipace - which descended from Phildes and before that Callendar.
It was understandable that since Edwin Brockhurst Livingston did not discover John II or John I of Virginia - only John III and brother, William - that he (Edwin) would jump to the false theory that John the Elder (John III of Virginia) and his brother, William (of Virginia), were actually the John (b. 1684) and William (b. 1682) to William the Merchant of Aberdeen - a really nice fit - even the number of generations fit.
The research of Dr. William Carter Stubbs and wife turned up the proof that John III of Virginia was the son of John II of Virginia - which disproved Edwin Brockholst Livingston's Aberdeen theory.
The fact that John III had trade dealings with Aberdeen Livingstons does suggest closeness and the Aberdeen line tracks back through Kirkland, Delajoy to Dunipace - Master Alexander Livingston of Dunipace and Phildes (b. about 1490) who was also the father of John Livingston the Elder of Dunipace and that line continues via John the Younger of Dunipace, David of Dunipace, and then David's son, John, whom Julian Livingston believes (and so does Jim Livingston who worked with Lucille when she was alive and now with Joe on the Scottish lines) also believes he is the John who came to Virginia as John Livingston I.
Whether he is or not - John, son of David of Dunipace, is a perfect generational fit (same number of generations) for John Livingston III of Virginia to be of the same generation as the sons of William the Merchant of Aberdeen - and a distant cousin of them.
(Information provided by Joe Slavin)