I have a James Peter Robertson Macrae in my tree, but not a great deal of info on him.
b. 26 Aug 1887, Contin, Ross & Cromart
Rev James Duncan Macrae, b. Lochcarron, Ross & Cromarty (1852 - 1905, Contin Manse)
Christina Robertson, b. Ballinluig Farm, Abernethy
(1855 - 1933, Dingwall, Ross and Cromarty
Marriage of parents: Mar 29 1883, Beauly, Kilmorack
Peter was informant on the death of his father, but almost no information after that, apart from his death in Buenes Aires, Argentina in 1918. Peter had a sister Catherine MacPherson Macrae, who married a Neil Mackintosh in 1933, and she may still be alive, though in her 70's.
A long shot, but suppose Peter he could have gone to Canada, married and returned to Scotland within your time frame. I have no idea why he would be in Argentina.
If any of this rings a bell with you, can give you a little more. Regards.
Reply posted by : Lindsay Robertson