Hello Lorna That Catherine W Low is a grand daughter of Andrew Low and Catherine Whitton Alexander is there son. His wife is Ann Beharie Kindest Regards Kristina Cameron (NZ) I found in the 1861 Census for Tay Park, Dundee Forfar the following: Catherine W Low, 22, b. 1839, Forfar, Dundee Father: Alexander Low, 56 Mother: Ann Low 48, Forfar, Dundee