Mary was born in 1755, the daughter of unknown parents. The place is not known.
Her husband was William Armour. They were married, but the date and place have not been found. Their seven known children were Agnes (1780-?), William (1781-?), Janet (1783-?), Armour (c1785-?), Armour (c1787-?), Armour (c1790-?) and David (1796-?).