Kammala jumla mai zuwa: Da yake murmurewa daga cututtukansa an nada shi jami'in sadarwa a hedkwatar sashen na 6 a watan Satumbar 1943 kuma an daukaka shi zuwa babban jami'in wucin gadi a wannan watan, wanda ya zama ainihin a watan Mayu 1945. Daga baya ya halarci Makarantar Ma'aikata a Cabarlah, Queensland, kuma bayan kammala karatun an tura shi zuwa Sashin Ayyukan Haɗin Australiya na 1 a watan Oktoba 1944. An haɗa shi da hedkwatar sashen na 7 kuma ya taimaka wajen shirya saukar amphibious a
Morotai da Balikpapan. An ambaci Ferguson a cikin Dispatches don shirinsa.