A will dated 1780 by Jacob Mendes Monsanto, names him as the "pioneer" (progenitor) of the Monsanto family of Curacao. Two and a quarter pages (474-476) of Monsanto family history/genealogical data is found in the following reference:
Author: Isaac S. Emmanuel
Title: Precious Stones of the Jews of Curacao, Curacaon Jewry 1656-1957.
New York - 1957; Bloch Publishing Company.
For those interested in this family, try to locate the abovenamed book at a major library. I found it in the Smithsonian Library system. Other St. Thomas families with a Curacao connection are found there.
Louise Daniel Hutchinson