The following baptisms are listed in the records of the Helderbergh Reformed Church, Guilderland, New York, trenscribed by Betty Fink and may be found at http://www.bettyfink.com/helderb02.htmhttp://www.bettyfink.com/helderb02.htm
Sarah Sebring Lamberts born 12/7/1786, baptised 11/6/1787. Parents Nicholas Lamberts and Nelly Sebring Sponsers Fredeerick Freydendal and Cathaarina Snertsinger
Geertje Teunise Lamberse born 4/11/1790, baptised 6/17/1790 Parents Nicholas Lamberse and Nelly Sebring No sponsers
In the 1790 census Nicholas Lamberse is listed at Watervliet, New York. In 1790 Watervliet was a district that encompased most of present day Albany County and is the location of the Helderbergh Reformed Church. Nicholas is listed with one male under 16, one male over 16 and two free white females.