Mezue ahịrịokwu na-esonụ: A kpọrọ Parry na Bar na Inner Temple ma rụọ ọrụ dịka onye otu Chester na North Wales Circuit. Na mmalite nke Agha Worldwa Mbụ, Parry sonyere ma bụrụ onye isi na 5th Royal Welch Fusiliers, Territorials. O jere ozi n'ụlọ ihe nkiri Europe, Gallipoli, Egypt na Palestine n'etiti 1914 na 1919. E merụrụ ya ahụ na Suvla Bay ma tinye ya n'ụlọọgwụ na Cairo. Ka ọ na-erule oge mmerụ ahụ ya na Suvla, ebe ọ nwetakwara oyi, Parry arịgoro n'ọkwa onye isi. Ọ merụkwara ahụ ugboro atọ n'agha na
Gaza, oge nke ọ gbagoro n'ọkwa nke onye isi, na esemokwu nke o meriri na Distinguished Service Order na 1917. N'ihi obi ike ya n'ihe omume ndị ọzọ, a kpọtụrụ Parry aha n'akwụkwọ ozi ma merie Order nke Naịl.