Cambron,
Thanks for the information. As a matter of fact, I am Seumas MacThomais (the Gaelic form of my name) and under that name wrote an account of the ancestry of Robert "Rob Ban" Robertson at the Miln of Invervack back in the 1980s. My family has preserved records of our ancestry, with the earliest documents dating back almost 200 years, along with a manuscript history of these Robertsons, prepared by my great-grandmother some 80 years ago.
I am familiar with the Guay wills, but note that John, younger of Guay, then deceased, was described as his father's "eldest" son, certainly indicating their were others.
The trio of Alexander Robertson in Guay, John Robertson in Auchnabeach and Helen Robertson in Easter Riemore (in John of Guay's 1750 will) correspond nicely to Alexander Robertson in Balnabiganach (located south of Guay, and north of Dowally), who had a son John in 1725 and a daugher Elen in 1728 with his wife, Janet Taus, in Dowally OPR. Alexander in Balnabiganach also had a daughter Elizabeth, b. 1734, by Isobel Robertson, his wife. This links him to the deceased Alexander Robertson "sometime inlaitt of Guay" whose second wife (so described in the will), Isobel Robertson, and their daughter Elizabeth, are the subjects of a 1770 will. The will also mentions a son of Alexander and Isobel, named Thomas.
Janet Taus, I suspect, was closely related to Donald Taus (elsewhere referred to as "Taus or Campbell"), who was granted Easter Riemore by the Duke of Atholl in 1744 (Perthshire sasines).
A final note that "A List of Persons Concerned in the Rebellion" (available online at Google books, pgs. 232-233) shows Charles Robertson, farmer, residing at "Raimore, Capoth" parish, followed immediately by "Alexr Robertson of Raimore," who resided at "Gaey, Douly" parish. Charles and Alexander are stated tp have joined Prince Charles as volunteers before the battle of Falkirk. Alexander is stated to have "continued to their dispersion," and both men were said to be "lurking." I am presently trying to identify Charles, who I suspect was Alexander's brother -- they both named children "John" and "Helen", an fairly uncommon combination, and also the names of John of Guay and his first wife, Helen Inglis of Byres.
No one has been able to offer me a definite view of what "inlaitt of Guay" means. The index to testmants shows it as "in Laitt of Guay," but this is clearly an error, as the "in" and "laitt" are joined (and all lowercase) in the original. I think, but cannot prove, that it might be a variant of the word "inlawed, which might suggest Alexander, having been pardoned by the general act in 1747, may have had some right to the wadset of Guay.
Thanks for your interest. Any thoughts on "inlaitt" and other things would be welcome. I have a great deal of material on Robertson landed families in Scotland, and would be glad to share information.