▁after ▁his ▁ 1 9 7 3 ▁ret irement ▁and ▁raised ▁three ▁daughters ▁and ▁a ▁son . ▁G arrison ▁died ▁of ▁a ▁heart ▁attack ▁on ▁February ▁ 1 4 , ▁ 1 9 9 4 , ▁in ▁Mountain ▁Home . ▁He ▁is ▁buried ▁at ▁Ar ling ton ▁National ▁C emetery ▁with ▁his ▁w ives . ▁ ▁World ▁War ▁II ▁ ▁Royal ▁Air ▁Force ▁On ▁March ▁ 1 7 , ▁ 1 9 4 1 , ▁G arrison ▁en list ed ▁in ▁the ▁United ▁States ▁Army ▁and ▁became ▁an ▁av iation ▁cad et ▁in ▁Class ▁ 4 1 - C ▁at ▁Mus k og ee , ▁Oklahoma , ▁but ▁was hed ▁out ▁of ▁advanced ▁flight ▁training ▁at ▁Bro oks ▁Field , ▁Texas , ▁in ▁October . ▁G arrison ▁prompt ly ▁en list ed ▁in ▁the ▁Royal ▁Air ▁Force ▁at ▁Dallas , ▁Texas ▁and ▁completed ▁flight ▁training ▁at ▁El ▁Centro , ▁California . ▁After ▁obtain ing ▁his ▁R AF ▁wings , ▁Pil ot ▁Officer ▁G arrison ▁was ▁sh ipped ▁to ▁England , ▁where ▁after ▁further ▁training ▁he ▁was ▁promoted ▁to ▁F lying ▁Officer ▁and ▁made ▁a ▁g unn ery ▁instruct or , ▁posted ▁to ▁R AF ▁Ha ward en ▁to ▁train ▁pil ots ▁flying ▁North ▁American ▁Must angs . ▁ ▁Army ▁Air ▁Forces ▁ ▁On ▁July ▁ 1 3 , ▁ 1 9 4 3 , ▁G arrison ▁transferred ▁from ▁the ▁R AF ▁to ▁the ▁United ▁States ▁Army ▁Air ▁Forces , ▁receiving ▁a ▁commission ▁as ▁a ▁first ▁lieutenant . ▁On ▁September ▁ 2 6 ,