John and his wife, Margaret, were both drowned in flood of the River Neshaminy around 1684.
According to Howard Jenkins in his 1904 publication on the Spencer Family, John Spencer of Bucks County, Pennsylvania, received a grant of 150 acres in Pennsylvania from William Penn in October 1681. It was granted to "John Spencer of London, Taylor". On October 16, 1683, John Spencer assigned this lease to a Henry Jones of Barbadoes. Howard writes, "The records of the Orphan's Court of Bucks County show that John Spencer died Tenth month (December) 22, 1683, leaving two children:
Howard writes further that, "It may be that the two sons of John Spencer and his wife, upon their parents' death in the flood on the Neshaminy, in 1683, were sent to Barbadoes, to be brought up by relatives there, such as Samuel Spencer mentions in his will, 1705, and that they returned after growing up, to Pennsylvania, as we know to have been the case with our Samuel. The minutes of the Board of Property indicate that James Spencer, in 1707, was in Philadelphia, (or in Bucks county), making his application for the warrant for his father's remaining right of land."
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