. ▁She ▁owned ▁Big ▁Tree ▁Farm ▁in ▁Glen ▁Head , ▁New ▁York ▁on ▁Long ▁Island . ▁ ▁Margaret ▁died ▁at ▁St . ▁Luke ' s ▁Hospital ▁in ▁Kansas ▁City , ▁Missouri ▁on ▁March ▁ 1 8 , ▁ 1 9 4 8 , ▁of ▁a ▁heart ▁attack . ▁Davis ▁received ▁her ▁nine ▁million ▁doll ar ▁fortune ▁upon ▁her ▁death . ▁He ▁re built ▁and ▁renov ated ▁his ▁Gl end ale ▁Farm ▁in ▁Independ ence . ▁In ▁ 1 9 4 9 , ▁Davis ▁purchased ▁the ▁Cla rem ont ▁Est ate ▁in ▁Colorado ▁Spr ings , ▁Colorado . ▁The ▁m ansion , ▁which ▁he ▁renamed ▁T rian on , ▁was ▁sold ▁to ▁the ▁Sister s ▁of ▁St . ▁Francis ▁Ser aph ▁in ▁ 1 9 5 2 . ▁Wood men ▁San ator ium , ▁also ▁in ▁Colorado ▁Spr ings , ▁was ▁purchased ▁by ▁Davis ▁in ▁July ▁ 1 9 5 0 . ▁His ▁wife , ▁Mar guer ite ▁Davis , ▁a ▁rail road ▁he ir ess ▁died ▁in ▁ 1 9 4 8 ▁and ▁wished ▁to ▁have ▁her ▁fortune ▁used ▁for ▁char itable ▁purposes . ▁The ▁Modern ▁Wood men ▁San ator ium ▁property ▁and ▁T rian on ▁were ▁sold ▁to ▁the ▁Po or ▁Sister s ▁of ▁St . ▁Francis ▁( S ister s ▁of ▁St . ▁Francis ▁of ▁Per pet ual ▁Ad oration ) ▁for ▁$ 1 ▁in ▁ 1 9 5 2 . ▁The ▁combined ▁fortune ▁that ▁they ▁received ▁was ▁worth ▁$ 2 , 3 2 5 , 0 0 0 ▁( ).