urs es ▁from ▁the ▁Pres yter ian ▁Base ▁Unit ▁of ▁the ▁American ▁Red ▁Cross , ▁travel led ▁to ▁France ▁on ▁active ▁duty ▁in ▁the ▁First ▁World ▁War . ▁Bre wer ▁became ▁the ▁Director ▁of ▁Base ▁Hospital ▁ 2 ▁in ▁Et ret at . ▁In ▁August ▁ 1 9 1 7 ▁he ▁was ▁part ▁of ▁an ▁American ▁surg ical ▁team , ▁which ▁also ▁included ▁Har vey ▁C ushing , ▁who ▁tried ▁to ▁save ▁L t . ▁Edward ▁Re vere ▁Os ler , ▁the ▁only ▁son ▁of ▁Sir ▁William ▁Os ler , ▁who ▁was ▁wounded ▁at ▁the ▁ 3 rd ▁battle ▁of ▁Y pres . ▁In ▁ 1 9 1 8 ▁he ▁became ▁Cons ult ing ▁Sur geon ▁to ▁the ▁ 4 2 nd ▁Division ▁of ▁the ▁American ▁Ex ped ition ary ▁Force , ▁and ▁later ▁became ▁Chief ▁Cons ult ant ▁to ▁the ▁First ▁Army . ▁ ▁He ▁retired ▁in ▁ 1 9 2 8 , ▁and ▁travel led ▁to ▁France ▁to ▁study ▁anth rop ology , ▁and ▁was ▁made ▁Research ▁Associ ate ▁of ▁Som atic ▁Anth rop ology ▁at ▁the ▁American ▁Museum ▁of ▁Natural ▁History ▁on ▁his ▁return ▁to ▁the ▁United ▁States . ▁He ▁was ▁diagn osed ▁with ▁bl ad der ▁cancer ▁in ▁ 1 9 3 7 , ▁which ▁was ▁treated ▁by ▁radi other apy ▁for ▁two ▁years ; ▁he ▁d eter ior ated ▁in ▁December ▁ 1 9 3 9 , ▁and ▁died ▁on ▁ 2 4 ▁December ▁ 1 9 3 9 ▁at ▁the ▁Pres by ter ian ▁Hospital ▁in ▁New