▁ 1 6 ▁September ▁ 1 8 8 8 ) ▁was ▁a ▁Scottish ▁peer . ▁ ▁Biography ▁Walter ▁Henry ▁was ▁the ▁son ▁of ▁Walter ▁Con ings by ▁Er sk ine , ▁ 1 2 th ▁Earl ▁of ▁K ell ie ▁and ▁El ise ▁Young son . ▁He ▁succeeded ▁as ▁ 1 3 th ▁Earl ▁of ▁K ell ie ▁ ▁on ▁his ▁father ' s ▁death ▁in ▁ 1 8 7 2 . ▁Con ings by ▁Er sk ine ▁had ▁purs ued ▁a ▁claim ▁for ▁succession ▁to ▁the ▁ear ld om ▁of ▁Mar ▁which ▁was ▁un resol ved ▁on ▁his ▁death , ▁but ▁this ▁claim ▁was ▁recognized ▁in ▁ 1 8 7 5 ▁making ▁Walter ▁Henry ▁the ▁Earl ▁of ▁Mar ▁also . ▁However , ▁this ▁was ▁modified ▁in ▁ 1 8 8 5 ▁by ▁a ▁special ▁Act ▁of ▁Parliament , ▁limit ing ▁the ▁claim ▁to ▁the ▁sevent h ▁creation ▁of ▁the ▁title , ▁leaving ▁Walter ▁the ▁ 1 1 th ▁Earl ▁of ▁Mar ▁concurrent ly ▁with ▁John ▁Go ode ve - Er sk ine , ▁who ▁was ▁ 2 7 th ▁Earl ▁of ▁Mar ▁in ▁its ▁first ▁creation . ▁There ▁have ▁there after ▁been ▁two ▁ear ls ▁of ▁Mar ▁at ▁any ▁one ▁time . ▁▁ ▁On ▁ 1 4 ▁October ▁ 1 8 5 3 , ▁he ▁married ▁Mary ▁Anne ▁For bes ▁( 1 8 3 8 – 2 2 ▁May ▁ 1 9 2 7 ), ▁daughter ▁of ▁William ▁For bes . ▁They ▁had ▁nine ▁children . ▁ ▁Walter ▁John ▁Francis ▁Er sk