▁Royal ▁D oul ton ' s ▁designs , ▁and ▁pre occup ied ▁with ▁the ▁management ▁of ▁the ▁W att s ▁Gallery ▁and ▁W att s ▁Mort u ary ▁Chap el ▁in ▁Com pton , ▁Sur rey , ▁Mary ▁W att s ▁lost ▁interest ▁in ▁the ▁project . ▁Work ▁to ▁complete ▁it ▁was ▁sp or adic ▁and ▁ceased ▁altogether ▁in ▁ 1 9 3 1 ▁with ▁only ▁ 5 3 ▁of ▁the ▁planned ▁ 1 2 0 ▁t iles ▁in ▁place . ▁In ▁ 2 0 0 9 , ▁the ▁Dioc ese ▁of ▁London ▁cons ented ▁to ▁further ▁add itions ▁to ▁the ▁mem orial , ▁and ▁the ▁first ▁new ▁table t ▁in ▁ 7 8 ▁years ▁was ▁added . ▁ ▁The ▁Every day ▁Hero es ▁of ▁Post man ’ s ▁Park , ▁a ▁now ▁dis cont in ued ▁mobile ▁app , ▁was ▁published ▁in ▁ 2 0 1 3 . ▁It ▁provided ▁a ▁detailed ▁account ▁of ▁the ▁fifty - four ▁inc idents ▁comm emor ated ▁on ▁the ▁Memorial ▁when ▁a ▁visitor ▁sc anned ▁its ▁pla que ▁with ▁a ▁hand h eld ▁device . ▁ ▁Table ts ▁ ▁The ▁table ts ▁are ▁arranged ▁in ▁three ▁rows , ▁with ▁ 2 4 ▁table ts ▁to ▁De ▁Morgan ' s ▁original ▁design ▁in ▁the ▁third , ▁central , ▁row , ▁the ▁ 2 4 ▁table ts ▁added ▁in ▁ 1 9 0 8 ▁directly ▁below ▁in ▁the ▁fourth ▁row , ▁and ▁more ▁recent ▁add itions ▁above ▁the ▁original ▁t iles ▁in ▁the ▁second ▁row . ▁The ▁first