most likely Isabel Cowell as she died 1784 - the 3 children fit in with her and the lack of subsequent children also fits - her will [bur Lon 17840418] d 14 apr 1784;eldest son thos; names judy fargher,margt fargher,isable fargher [?ch of John fargher + margt cowil m lon 17611110];husb john; ch ua ;pledges john quine (husb) + charles kewley (a witt with cath kewley)