U.S., Dutch Reformed Church Records in Selected States, 1639-1989 for Margaret Dubois
New York, New Hurley Baptisms, 1770-1923
Johannes Masten
Margaret Dubois
Child: Sarah, born 31 Oct 1799, baptized 15 Dec 1799
If the above are related to your search then see below as a consideration;
I would look towards Benjamin as possible brother to Margaret.
Name: Margareth Dubois
Event Type: Baptism
Birth Date: 8 Oct 1797
Baptism Date: 27 Dec 1797
Baptism Place: Coxsackie, Greene, New York, USA
Father: Benjamin Dubois
Mother: Catharina Salsbury
I would look towards these parents maybe having a son whom may be father to your Margaret.
Name: Abraham Dubois
Gender: Male
Event Type: Baptism
Baptism Date: 15 Feb 1748
Baptism Place: Wawarsing, Ulster, New York, USA
Father: Benjamin Dubois
Mother: Maria Bevier
Name Maria Delamater
Gender Female
Birth Place NY
Birth Year 1740
Spouse Name Conrad Dubois
Spouse Birth Place NJ
Spouse Birth Year 1735
Marriage Year 1763
Household Members
Maria Delamater
Conrad Dubois
U.S. and International Marriage Records, 1560-1900