you should find "Soraidh leis an àit'" at www.geocities.com/alltandubh/Mairi_Mhor.html and
www.bbc.co.uk/scotland/alba/foghlam/beag_air_bheag/songbox/marion.shtml

I see it's listed in George Seto's index also

George, did you ever establish which song "this lady" was looking for?