Private Alexander Bransdon Gamack was an 18 year old shop assistant from Parramatta. He was the son of Mr James Gamack and Mrs Gamack of Sorrell Street Parramatta.

He enlisted on 27 October 1915. He was sent to Freemantle via the Berrima on 27 December 1915 as he was suffering from the mumps. He embarked with his unit aboard the HMAT Borda A30 from Freemantle on 17 January 1916. On 13 March 1916 he was transferred from 13 Reinforcements, 11 Battalion, to 9 Reinforcements, 20 Battalion. He embarked aboard the HMT Saxonia from Alexandria, Egypt, on 27 March 1916 to Marseilles, France, arriving on 3 April 1916. He was taken on strength into the 20 Battalion in France on 12 May 1916. He was wounded in action, suffering a gunshot wound to the left arm, in France on 19 June 1916. He embarked aboard the HS St Denis at Boulogne, France, for England to receive treatment for his injury on 25 June 1916. The arm was so seriously injured, as it had been shattered, he faced the prospect of either having the arm removed or having one arm much shorter than the other.

He returned to Australia aboard the Kanowna due to his injury on 28 October 1916. He was discharged on 9 January 1917.

Neera Sahni, Research Services Leader, City of Parramatta, Parramatta Heritage Centre, 2018