Kammala wannan jumla: An ba Porteous izini a cikin Royal Regiment of Artillery a 1937. A ranar 26 ga Agusta 1940 an daukaka shi zuwa laftanan. A ranar 19 ga watan Agusta, 1942, yana da shekaru 24 da haihuwa kuma babban jami'in da aka ba shi na wucin gadi a No. 4 Commando lokacin da ya yi aikin da aka ba shi lambar VC, a lokacin yakin basasa.
Binciken Dieppe. An buga wannan ambaton a cikin ƙarin "London Gazette" na 2 ga Oktoba 1942 kuma ya karanta: