Bowen, Rowland Griffiths (Lieutenant)
Lieutenant R G Bowen of the Naval Staff Office, Port Melbourne is listed among the Naval contribution to the Expeditionary Force that sailed for Rabaul in, what was then, German New Guinea, in September 1914.
1914 ‘GERMAN NEW GUINEA.’, The Argus (Melbourne, Vic. : 1848 – 1957), 14 September, p. 7. , viewed 07 Dec 2016, http://nla.gov.au/nla.news-article10806307
Lieutenant Rowland George BOWEN (Wounded slightly) Lieutenant Bowen, who is among the wounded, is a Victorian by birth, and is the son of the late Mr. D. G. Bowen, of Taggerty, in the North-Eastern district. He was married on 14th August last, just prior to his sailing on H.M.A.S. Australia, to Miss Grace Bell, daughter of Mr. Norris G. Bell, of “Delgetti,” South Yarra, Engineer in Chief of the Commonwealth Railways. He is 22 years of age. The Misses Bowen, of the Sydney-arcade, are his sisters. http://trove.nla.gov.au/newspaper/article/198635123 The Age, 14 September, 1914
I think his middle name is Griffiths, rather than George. See ADB entry http://adb.anu.edu.au/biography/bowen-rowland-griffiths-5311