Her article has more extensive details:
https://en.wikipedia.org/wiki/James_Erskine,_Lord_Grange wrote:His wife, Rachel Chiesley, suspected her husband of infidelity, and after some years of unhappiness Grange arranged a plan for her abduction.[1] In January 1732 she was taken in secret from Edinburgh to the Monach Islands for two years, thence Hirta in St Kilda, where she remained for about ten years. From there, she was taken to Assynt in Sutherland, and finally to Skye. To complete the idea that she was dead her funeral was publicly celebrated, but she survived until May 1745.[1][3]
https://en.wikipedia.org/wiki/Rachel_Chiesley,_Lady_Grange wrote:After 25 years of marriage and nine children, the Granges separated acrimoniously. When Lady Grange produced letters that she claimed were evidence of his treasonable plottings against the Hanoverian government in London, her husband had her kidnapped in 1732. She was incarcerated in various remote locations on the western seaboard of Scotland, including the Monach Isles, Skye and St Kilda.
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Lady Grange's circumstances were correspondingly more uncomfortable and no-one on the island spoke any English.[40] She described Hirta as "a viled neasty, stinking poor Isle" and insisted that "I was in great miserie in the Husker but I'm ten times worse and worse here".[29] Her lodgings were very primitive. They had an earthen floor, rain ran down the walls and in winter snow had to be scooped out in handfuls from behind the bed.[44] She spent her days asleep, drank as much whisky as was available to her, and wandered the shore at night bemoaning her fate.
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Nonetheless, the lack of action taken by Edinburgh society in general and her children in particular to retrieve one of their own is remarkable. The Kirk hierarchy, for example, made no attempt to contact her or convey news of her condition to the capital, yet they could easily have done so. Whatever the call of morality and natural justice may have suggested, John Chiesley's daughter evidently did not command a sympathetic audience in her home town