Born in Kaiapoi, New Zealand, Gilbert Simpson Haining was a married 28 year old telegraphist at the time of his enlistment in Melbourne, Victoria on the 16th of April 1915. His unit embarked from Melbourne, Victoria, on board HMAT RMS Persia on the 10th of August 1915.
He was taken on strength with the 5th Division Signal Company on the 6th of March 1916.
On May 9th 1916, Gilbert was promoted to Corporal. He was promoted again on the 1st of August 1916 to Sergeant.
On the 5th of December 1917, he was awarded the Military Medal.
On March 23rd 1918, Gilbert was appointed Second Lieutenant and then promoted to Lieutenant on the 23rd of June 1918.
He returned to his wife in Ballarat, Victoria on the 26th of February 1920, and was discharged due to the termination of his appointment on the 26th of April 1920.

Tree No. 678