It is unknown at this time who Sarah married. Although a Sarah Hagaman married George A Birdsall, our Sarah is probably NOT the wife of George A Birdsall, as there are no ‘Birdsalls’ mentioned as relation to Elizabeth Sheldon, nor any of the Birdsall extended families.
It has been rumored that Sarah married Abraham Dyer. I have not been able to find anything to verify this. The Dyers were neighbors of the Hagamans, owning property next to and surrounding the Hagamans’ properties.