▁of ▁Mrs . ▁S idd ons , ▁ 2 9 ▁June ▁ 1 8 1 2 , ▁left ▁for ▁a ▁while ▁the ▁stage ▁open ▁to ▁her . ▁ ▁Two ▁years ▁later , ▁however , ▁the ▁appearance ▁of ▁Miss ▁O ' Ne ill , ▁with ▁whom ▁she ▁was ▁unable ▁to ▁co pe , ▁th wart ed ▁her ▁hopes . ▁Although ▁in ▁ 1 8 1 5 ▁she ▁played ▁as ▁leading ▁lady ▁opposite ▁Ke an ▁in ▁a ▁season ▁of ▁plays ▁which ▁included ▁Rome o ▁and ▁Jul iet , ▁she ▁was ▁becoming ▁too ▁m ature ▁for ▁such ▁parts ▁and ▁her ▁previously ▁much - ad m ired ▁vocal ▁delivery ▁was ▁attacked ▁as ▁affected . ▁▁ ▁In ▁ 1 8 1 8 , ▁Mrs . ▁Bart ley ▁accompanied ▁her ▁husband ▁to ▁America , ▁where ▁she ▁obtained ▁both ▁reputation ▁and ▁fortune . ▁Return ing ▁in ▁ 1 8 2 0 ▁she ▁played ▁in ▁the ▁country , ▁and ▁on ▁ 1 5 ▁November ▁ 1 8 2 3 ▁re app eared ▁at ▁Cov ent ▁Garden ▁as ▁Mrs . ▁B ever ley ▁in ▁the ▁‘ G am ester .’ ▁Her ▁performances ▁were , ▁however , ▁inf re quent . ▁In ▁the ▁character ▁of ▁Lady ▁Mac b eth ▁she ▁finally ▁retired ▁from ▁the ▁stage . ▁ ▁The ▁loss ▁of ▁her ▁two ▁children ▁( see ▁George ▁Bart ley ) ▁greatly ▁affected ▁her . ▁Short ly ▁after ▁the ▁loss ▁of ▁her ▁daughter ▁she ▁was ▁str icken ▁with ▁par al ysis . ▁After ▁ling ering ▁some ▁years ▁she ▁died ▁ 1 4 ▁January ▁ 1