I am not sure if there is a connection or not but my grandmother was Bella Mackay b 1889 in Dornoch. Her father was Alex Mackay (fisherman). Alex's father was William Mackay and his wife was Christy Ross. Between the Ross's and the Mackays and the small town of Dornoch at that time there should be some family branch back to the same tree. Did you ever find out any more family linkages?