▁Minister , ▁H . ▁H . ▁As qu ith , ▁at ▁the ▁end ▁of ▁ 1 9 1 6 , ▁and ▁continued ▁into ▁the ▁new ▁coal ition ▁cabinet . ▁ ▁Post war ▁planning ▁In ▁July ▁ 1 9 1 7 , ▁he ▁became ▁a ▁Minister ▁Without ▁Port folio ▁with ▁responsibility ▁for ▁anal ys ing ▁the ▁problems ▁that ▁Britain ▁would ▁face ▁after ▁the ▁war ▁and ▁prepar ing ▁plans ▁for ▁reconst ruction . ▁He ▁worked ▁with ▁Arthur ▁Green wood ▁to ▁develop ▁program mes ▁for ▁swe eping ▁social ▁re forms . ▁Perhaps ▁Add ison ' s ▁greatest ▁achiev ement ▁was ▁the ▁establishment ▁of ▁a ▁cost ing ▁system ▁which ▁by ▁the ▁end ▁of ▁the ▁war ▁had ▁saved ▁an ▁estimated ▁£ 4 4 0   mill ion . ▁ ▁Add ison ' s ▁Ho xt on ▁constitu ency ▁was ▁abol ished ▁for ▁the ▁ 1 9 1 8 ▁general ▁election , ▁when ▁he ▁was ▁elected ▁for ▁the ▁new ▁Sh ored itch ▁constitu ency . ▁ ▁Although ▁Lloyd ▁George ▁was ▁increasing ly ▁influenced ▁by ▁the ▁Conserv ative ▁members ▁of ▁his ▁coal ition ▁government , ▁Add ison ' s ▁plans ▁formed ▁the ▁basis ▁of ▁much ▁post - war ▁legisl ation . ▁Add ison ▁became ▁President ▁of ▁the ▁Local ▁Government ▁Board ▁in ▁January ▁ 1 9 1 9 , ▁with ▁the ▁goal ▁of ▁transform ing ▁it ▁into ▁a ▁Ministry ▁of ▁Health . ▁He ▁became ▁the ▁first ▁Minister ▁of ▁Health ▁in ▁June . ▁He ▁was ▁responsible ▁for ▁a ▁great ▁deal ▁of ▁social ▁legisl ation , ▁including ▁the ▁first ▁H ous ing ▁and