On 11 May 1718 when Pieter was 21, he first married
Sara Montfoort (49942) , daughter of
Jan Montfoort (ca 1648-1737) &
Eytje Abrahams Brinckerhoff (32996) (ca 1668-1728).
Born on 28 Feb 1696 in Jamaica, Queens County, New York. Sara died in Oyster Bay, Nassau County, New York, on 7 Feb 1757; she was 60.