▁of ▁the ▁South . ▁While ▁serving ▁there ▁he ▁did ▁work ▁on ▁his ▁doctor al ▁studies ▁through ▁General ▁The ological ▁Sem inary , ▁receiving ▁a ▁Doctor ▁of ▁The ology ▁in ▁ 1 9 7 2 . ▁ ▁In ▁the ▁early ▁ 1 9 7 0 s — as ▁work ▁on ▁the ▁proposed ▁" new ▁P ray er ▁Book " ▁was ▁under way — H atch ett ' s ▁work ▁( al ong ▁with ▁that ▁of ▁M asse y ▁She ph erd ) ▁deeply ▁sh aped ▁the ▁final ▁version . ▁In ▁ 1 9 7 3 , ▁he ▁was ▁appointed ▁to ▁the ▁Epis cop al ▁Church ' s ▁Stand ing ▁Commission ▁on ▁Church ▁Music , ▁serving ▁as ▁the ▁chair person ▁of ▁that ▁text ▁committee ▁for ▁The ▁H ymn al ▁ 1 9 8 2 . ▁In ▁ 1 9 7 6 , ▁H atch ett ▁was ▁appointed ▁a ▁member ▁of ▁the ▁Stand ing ▁Lit urg ical ▁Commission . ▁He ▁served ▁as ▁chairman ▁of ▁the ▁committee ▁which ▁produced ▁The ▁Book ▁of ▁Occ as ional ▁Services , ▁ 1 9 7 9 ▁as ▁well ▁as ▁a ▁member ▁of ▁the ▁Epis cop al ▁Church ' s ▁General ▁Board ▁of ▁Ex am ining ▁Chap la ins ▁( 1 9 8 8 – 1 9 9 4 ). ▁ ▁After ▁publication ▁of ▁the ▁ 1 9 7 9 ▁Book ▁of ▁Common ▁P ray er , ▁H atch ett ▁author ed ▁the ▁exhaust ive ▁Comment ary ▁on ▁the ▁American ▁P ray er ▁Book ▁( 1 9 8 1 ), ▁still ▁the