"Deutschland, Geburten und Taufen, 1558-1898," index, FamilySearch (https://familysearch.org/ark:/61903/1:1:V41Y-HB5 : accessed 2 May 2015), Anna Margretha Schwartz, 27 Sep 1738; citing ; FHL microfilm 1,238,317.
Records of the German Reformed Church of New York City, Rotulus, in The New York Genealogical and Biographical Record. (New York, New York: New York Genealogical and Biographical Society) Vol. 128, No. 1, Jan. 1997, pg. 60.
Gress/:Mar. Marg.:/ born Schwartz. Commun:[communicant] Wife of Mich. Gress. Moved to the country. A child a year old is to be brought up in our religion.