London: Temple Church - Register of Baptisms 1629-1853 & Marriages 1628-1760 (Entries for 1754) 19 Jan 1754 Ann, d. of Joshua & Ann Jenour, of Serjeants' Inn, Fleet Street, born 27 Dec 1754 (must mean 1753).
Marriage after Banns recorded 9 July 1783 at St Lawrence, Little Stanmore, Harrow, Middlesex. Spouse Reverend Richard Williams.
Her sister Charlotte was one of the witnesses. The other appears to be Saml Moore (but difficult to read).