Robert was the third son of Jeremiah and Jane Keogh to enlist. Gerald served initially with the 26th Battalion and after a bout of enteric fever returned to the front serving with the 12th Battalion. Jack also served with the 26th Battalion.
Robert was initially allotted to the 6th reinforcements for the 12th Battalion departing Australia on board the RMS Orontes on 29 March 1916. On reaching Alexandria he was transferred to the recently formed 52nd Battalion. On 2 April 1917, during the capture of Noreuil, Robert Keogh sustained wounds to his right shoulder and left knee. He was evacuated to England and remained there until May 1918 when he joined the 51st Battalion, his former unit now having been disbanded. On 5 April 1919 he was marched out to England for return to Australia.
Post war Robert farmed 17 acres on Dial road. He married and raised a family of four children. Robert Keogh died on 7 February 1964 and is buried at Penguin.