Marion Aitchison was married to the Rev. James Cameron, had two children John Home and Helen Stirling, the latter being my paternal grandmother.
I know that Marion A.'s mother (name unknown) had a sister who married an Elliot, and lived on a farm, Dean Howl, near Rowley in County Durham. In 1891 that farm had been in the Elliot family for 200 years.
If there are any Aitchisons out there with knowledge of Marion and her family, I'd appreciate hearing from you.