Per his military service record (regimental no. 2221), Henry Moss was born at Mossgiel, N.S.W. He gave his age as 24 years, his marital status as single, and his occupation as shearer. His description on his medical was height 5 feet 5 ½ inches tall, weight 152 lbs., with a medium complexion, grey eyes, and dark brown hair. His religious denomination was Church of England. He joined the Coo-ee March at Dubbo. He undertook a preliminary medical at Cobar on 11th October 1915, giving his postal address on this document as “Cobar”. He completed his medical on the 13th October 1915 at Dubbo, and was attested on the 13th October 1915 at Dubbo. He claimed to have no previous military service.
After completing the remainder of the march he went to Liverpool Camp. He was appointed as 15th reinforcement for the 1st Light Horse Regiment at Liverpool on 7th February 1916.
On his embarkation roll his address at time of enrolment was Bulli, South Coast, N.S.W., and his next of kin is listed as his mother, Mrs. Elizabeth Moss, Bulli, South Coast, N.S.W.
Private Moss departed Sydney on the HMAT A25 Armadale on the 21st March 1916. He arrived in Egypt on the 24th April 1916.
On the 18th May 1916 he was transferred to the 4th Pioneer Battalion at Serapeum.
On the 4th June 1916 he embarked on the transport Scotian at Alexandria to join the British Expeditionary Force in France. He disembarked in Marseilles on 11th June 1916.
Private Moss was appointed Lance Corporal in the field on 17th November 1916.
On the 4th June 1916 L/Corporal Moss was transferred to the 45th Battalion.
L/Corporal Moss was wounded in action on 7th June 1917, when he received a gunshot wound to his left arm and jaw, and was taken to the 53rd Casualty Clearing Station. On the 8th June he was moved to the 7th General Hospital at St Omer. On the 4th August he was admitted to the 3rd Australian Auxiliary Hospital in Dartmouth in England.
L/Corporal Moss departed England on 26th September 1917 on the HMAT Borda to return to Australia, and disembarked in Sydney on 25th November 1917.
He was medically discharged on 2nd March 1918.