▁films . ▁ ▁Biography ▁ ▁Walker ▁was ▁born ▁near ▁D und ee , ▁Scotland ▁and ▁received ▁his ▁early ▁education ▁in ▁Sh rew s bury , ▁later ▁en rolling ▁at ▁the ▁Royal ▁Military ▁College , ▁Sand h urst . ▁After ▁gradu ation ▁in ▁ 1 9 3 1 , ▁he ▁was ▁commission ed ▁in ▁the ▁Black ▁Watch . ▁He ▁served ▁with ▁the ▁foreign ▁batt alion ▁in ▁India ▁and ▁Sud an ▁( 1 9 3 2 – 3 8 ) ▁and ▁in ▁Canada ▁( 1 9 3 8 – 3 9 ) ▁as ▁a ide - de - camp ▁to ▁Governor - General ▁Lord ▁Twe eds mu ir , ▁the ▁novel ist ▁John ▁Buch an . ▁ ▁There ▁he ▁met ▁W illa ▁M age e ▁of ▁Montreal , ▁and ▁they ▁married ▁on ▁ 2 7 ▁July ▁ 1 9 3 9 . ▁The ▁couple ▁had ▁four ▁sons ▁together : ▁G iles , ▁Bar cl ay , ▁David , ▁and ▁Julian . ▁ ▁In ▁September ▁ 1 9 3 9 , ▁amid ▁the ▁threat ▁of ▁war , ▁Walker ▁returned ▁to ▁England , ▁where ▁he ▁trained ▁rec ruits . ▁The ▁next ▁year ▁he ▁was ▁posted ▁to ▁France ▁with ▁The ▁Black ▁Watch ▁ 5 1 st ▁High land ▁Division . ▁Capt ured ▁by ▁the ▁Germ ans ▁at ▁St . ▁Val ery ▁in ▁June ▁ 1 9 4 0 , ▁he ▁spent ▁nearly ▁ 5 ▁years ▁in ▁prisoner ▁of ▁war ▁cam ps , ▁esc aping ▁three ▁times ; ▁each ▁time ▁he ▁was ▁re capt ured ▁after ▁getting ▁outside ▁the