In Melton Church near Daventry, Mary erected a memorial firstly to her grandfather, James M.D. who died on 12 November 1761 aged 85 and to his wife Frances, who died on 1 May 1725 aged 50 (?); then to her father and mother, Nicolas and Helen Child, who died on 19 March 1746 and on 15 May 1775 (Nicolas aged 43 and Helen 69); and lastly to her Uncle John who "tenderly and affectionately supplied the place of a husband and father to his widowed sister and her daughter."

Source: Robert Halliday Lidderdale, An Account of the Lowland Scots Family of Lidderdale, 1950.

Mary Child married John Plomer who afterwoods changed to his Uncle's name of Clarke who owned the Estate of Welton Place, Drayron near Daventry. Mary and John had three children: Anne Frances, Mary, and Helen Amelia. Helen Amelia married Rev. Thomas Smith on August 10, 1809.

Source: communication from Dave Rusell-Smith

Middlesex: Clerkenwell - Parish Registers, Monumental Inscriptions of Charterhouse Chapel
A Register of Marriages Solemniz'd in Charterbouse Cbappell since the year 1670.

08 Aug 1733 Mr. Nicolas Child, of the Parish of St. Giles, Cripplegate, Batchelour, and Hellen Lidderdale, of St. Leonard's, Foster Lane, Spinster.

Other Sources:
• Marriage: Boyd's Marriage Index and Vicar-General Marriage License Allegations, English Origins, (http://www.englishorigins.com).