Mary BELLOWS was second wife of Lieut. William STEWART. Mary and Lieut. William had no children.
[Barbour Index, Stonington, p 371] and [Wheeler: History p. 605]
Stewart William, Lieut. m. Mary BELLOWS, Mar 16, 1747 by Rev. Ebenzer Punderson. Vol 3, page 151.
There seems to be no more information about Mary BELLOWS.