John was born about 1859 in Jordanhill, Renfrew, Scotland, the son of Alexander Hay and Mary Colquhoun.
He died before 1891. The place is not known.
His wife was Elizabeth Vicars, who he married on 29 DEC 1882 in Renfrew, Scotland. Their three known children were Alexander (c1884-?), Robert (c1887-?) and Baird (c1889-?).