Frank Anthony O'Loghlen was the son of Patrick Joseph and Mary Josephine, nee Blake-Forster, O'Loghlen. He was born in August, 1895, the second of three youngest of three children. He enlisted on 29 April, 1915, aged nineteen years. He was sent to Broadmeadows after call-up and attached to the 24th Battalion, 6th Brigade, raised 'in a hurry', according to the Australian War Memorial Unit History. The 24th battalion was raised in May 1915 and sailed from Melbourne a week later, on board HMAT Euripides A14. 

The 24th Battalion landed in Egypt and spent July and August training. On 4 September, they went ashore at Gallipoli. Their task was to hold the line at Lone Pine, a task so difficult and dangerous that the men alternated with the 28 th Battallion, rotating on a daily basis, according ot one source. Frank O'Loghlen was one of the casualties, killed in action on 29 September, 1915. He was buried at Shrapnel Gully Cemetery, Plot 11, Row D, Grave 27, Gallipoli Peninsula, aged twenty.

The Argus recorded his death, with others, on Monday, 1 November, 1915, in an article entitled Australian Who Have Fallen, with photographs (see below). The family put in a death notice to The Argus, published on 11 October 1915: O'Loghlen. On 16th September at the Dardanelles, Francis Anthony Butler, youngest son of Mr and Mrs. P.J. O'Loghlen, killed in action. God's will, not ours, be done. Patrick Joseph O'Loghlen, Frank's father, died soon after, on 7 December, 1915, at Perth. The death notice in The Argus of 11 December, 1915, read: O'Loghlen, On 7 December at Perth, Western Australia, beloved husband of M.J.V., father of Sister Mothilde,Walter and the late Private F.A.B. O'Loghlen RIP. W.A., American and home papers, please copy.  It would seem then, that Patrick O'Loghlin may have been American by birth, or had relatives there or perhaps, worked there.