I have found Alexander's death registration on the Scotland's People website, this gives his parents as Alexander and Ann Anderson. The informant was his son William.
Parent:
His father was Alexander Mutch [A18]
Relationships:
Spouse Mary Donaldson. They married 15 December 1850 in the parish of Tarves.
Children were:
- James Hay born 8 October 1858 in the parish of Tarves
- William Hay born 1 October 1861 in the parish of Tarves - died 4 February 1892 in the parish of Tarves