↑ "Records of the Society of Friends of the City of New York and Vicinity, from 1640 to 1800", in The New York Genealogical and Biographical Record. (New York, New York: New York Genealogical and Biographical Society) Vol. 4, p. 94.
The children of Samuel and Ann Thorn flushing: ... Nathaniel was born ye 14 d. 11 m., 1720/21. [Note: In old-styles dates, the eleventh month is January. For comparison to the modern calendar, it corresponds to the following year. More info may be found here.]