1 9 5 6 ▁Martin ▁spent ▁ten ▁years ▁in ▁fre el ance ▁photo j ournal ism ▁while ▁also ▁working ▁at ▁her ▁brother ' s ▁motion ▁picture ▁studio . ▁Her ▁last ▁major ▁job ▁was ▁a ▁ 1 9 6 7 ▁government ▁contract ▁in ▁which ▁she ▁documented ▁military ▁gra ves ites ▁in ▁Europe ▁for ▁the ▁American ▁Battle ▁Mon uments ▁Commission . ▁ ▁Books ▁and ▁manuscript s ▁ ▁During ▁the ▁summer ▁months ▁of ▁ 1 9 4 1 ▁Martin ▁tra ve led ▁with ▁an ▁author ▁known ▁for ▁her ▁coverage ▁of ▁av iation ▁news ▁on ▁a ▁survey ▁of ▁Brazil ▁by ▁air . ▁With ▁co operation ▁from ▁the ▁Brazil ian ▁government ▁they ▁fle w ▁over ▁the ▁country ▁in ▁an ▁out dated ▁single - engine ▁air plane . ▁The ▁trip ▁resulted ▁in ▁many ▁magazine ▁feature ▁articles ▁and ▁two ▁books , ▁both ▁cred ited ▁to ▁Alice ▁Rog ers ▁H ager ▁as ▁author : ▁Front ier ▁by ▁Air ▁( New ▁York , ▁Mac mill an , ▁ 1 9 4 2 ) ▁and ▁Gi ant ▁to ▁the ▁South ▁( New ▁York , ▁Mac mill an , ▁ 1 9 4 5 ). ▁Martin ' s ▁few ▁months ▁as ▁W A AC ▁photograph er ▁and ▁public ist ▁resulted ▁in ▁a ▁book ▁author ed ▁by ▁Jean ▁St ans bury ▁called ▁B ars ▁on ▁Her ▁Should ers ▁( New ▁York , ▁D odd , ▁M ead ▁& ▁Co ., ▁ 1 9 4 3 ). ▁While ▁she ▁was ▁a ▁war ▁correspond ent ▁in ▁southern ▁Europe ▁Martin ▁assemble d ▁photos ▁and ▁prepared ▁text ▁for ▁two