Matthew Cox (c1735-1804) was a son of Matthew Cox (c1710-c1750) who is mentioned in the will of William Cox (c1685-1754) which was probated 19 March 1754 in Essex county, Virginia and mentions his grandson Matthew, son of his deceased son named Matthew Cox. William Cox (c1685-1754) may be the William mentioned in the will of Matthew Cox (c1660-1734) dated 15 January 1733 and recorded 18 March 1734 in Goochland county, Virginia.

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