wich , ▁Kent , ▁ 1 9 ▁August ▁ 1 8 6 5 ), ▁sixth ▁daughter ▁of ▁John ▁Campbell , ▁E sq ., ▁of ▁L och end . ▁Sir ▁John ▁Campbell , ▁of ▁A ird s ▁Bay , ▁gained ▁the ▁rank ▁of ▁lieutenant ▁colon el ▁in ▁the ▁service ▁of ▁the ▁Ar gy ll shire ▁and ▁B ute ▁Milit ia . ▁In ▁ 1 8 0 4 ▁he ▁claimed ▁the ▁baron et cy ▁of ▁Sir ▁Donald ▁Campbell , ▁ 1 st ▁Baron et , ▁of ▁Ar dn am urch an ▁and ▁A ird s , ▁but ▁this ▁claim ▁involves ▁a ▁descent ▁from ▁an ▁il leg it imate ▁child . ▁ ▁Career ▁He ▁was ▁appointed ▁Lieutenant ▁Governor ▁of ▁Saint ▁Vincent ▁and ▁the ▁Gren ad ines ▁in ▁ 1 8 4 5 , ▁in ▁which ▁office ▁he ▁served ▁until ▁his ▁death ▁at ▁King st own ▁on ▁ 1 8 ▁January ▁ 1 8 5 3 . ▁At ▁that ▁time , ▁Saint ▁Vincent ▁was ▁a ▁British ▁domin ion , ▁having ▁been ▁won ▁from ▁the ▁French ▁at ▁the ▁Tre aty ▁of ▁Vers a illes ▁in ▁ 1 7 8 3 ▁after ▁changing ▁hands ▁more ▁than ▁once ▁during ▁the ▁mid - 1 8 th ▁century . ▁As ▁Lieutenant ▁Governor ▁he ▁was ▁the ▁highest ▁British ▁authority ▁on ▁the ▁island , ▁the ▁direct ▁representative ▁of ▁the ▁Queen . ▁ ▁Title ▁Although ▁Sir ▁John ▁claimed ▁the ▁Baron et cy ▁of ▁Campbell ▁of ▁Ar dn am urch an ▁and ▁A ird s , ▁his ▁father ▁was ▁the ▁first ▁to ▁claim ▁it ▁as ▁successor