There is a marriage bond dated 18 October 1784 that states John Sharpe of Marden 19 son of Thomas Sharpe and Philadelphia born at Sandhurst 5 February 1765 and Mary Fuller of Benenden, spinster, at Benenden, Thomas Chittenden of Marden signed the bond.
Listed under Kent Surrey London: Canterbury Marriage Licenses 1781-1809, Vol 32.
The marriage took place at Benenden the same day.