Kammala wannan jumla: Gration gani aiki sabis a lokacin
Bala'in Malayan, kafin halartar Kwalejin Sojojin Burtaniya, Camberley a 1964. Ya kammala aikinsa a lokacin yakin Vietnam tsakanin 1969 da 1970, a lokacin da aka tura shi a matsayin kwamandan jami'in na 1st Australian Civil Affairs Unit tare da mukamin Laftanar Kanar. Don "ayyukansa masu daraja" a Vietnam, an nada Gration a matsayin Jami'in Dokar Daular Burtaniya a shekarar 1971.