▁H . ▁E . ▁Re id , ▁Grand m ère ▁was ▁following ▁normal ▁oper ational ▁doctrine ▁by ▁going ▁after ▁the ▁sub marine , ▁and ▁not ▁stopping ▁to ▁pick ▁up ▁surv iv ors . ▁If ▁she ▁had ▁stopped , ▁she ▁would ▁likely ▁have ▁been ▁s unk ▁as ▁well ▁by ▁U - 6 9 . ▁ ▁In ▁all ▁ 5 7 ▁military ▁personnel , ▁ 3 1 ▁merchant ▁se amen ▁and ▁ 4 9 ▁civ ili ans ▁— ▁including ▁many ▁women ▁and ▁children ▁— ▁were ▁killed ▁in ▁the ▁s inking , ▁tot alling ▁ 1 3 7 ▁persons ▁lost ▁( most ▁were ▁tra pped ▁in ▁the ▁ship , ▁and ▁d rown ed ). ▁The ▁s inking ▁was ▁also ▁one ▁of ▁the ▁few ▁times ▁that ▁military ▁c ensor ship ▁was ▁immediately ▁lifted , ▁in ▁an ▁attempt ▁to ▁prevent ▁rum ours ▁and ▁spec ulation . ▁The ▁s inking ▁made ▁news ▁across ▁North ▁America ▁that ▁week ▁and ▁was ▁used ▁effectively ▁as ▁a ▁r ally ing ▁cry ▁for ▁Vict ory ▁Bond ▁campaign s . ▁The ▁s inking ▁was ▁possibly ▁the ▁most ▁significant ▁in ▁Canadian ▁and ▁New found land ▁waters , ▁not ▁because ▁of ▁Car ib ous ▁tact ical ▁importance ; ▁but ▁rather , ▁the ▁U - bo at ▁war ▁was ▁on ▁display ▁to ▁Canad ians ▁and ▁New found land ers ▁on ▁their ▁home ▁front . ▁▁ 1 0 th ▁pat rol ▁and ▁loss ▁On ▁ 1 7 ▁February ▁ 1 9 4 3 , ▁while ▁operating ▁with ▁w olf - pack ▁H au de gen , ▁U - 6