Nan Wade is I think Ann Cannell born 1768 who married Robert Wade born 1760 in 1790 in Kirk Michael ('both of this parish' in Register) buried Michael 23 March 1844 age 76, and her daughter Ann Boyde nee Wade described as 'herbalist' in 1851 when living with her dau and son-in-law Ann + Wm Christian) carried on her trade.
several refs on MNB