His parents married in 1890, so I do not see why the birth was registered in 1920
1900 Sep 10 born Callan, Kilkenny - the birth appears to have been re-registered in April 1920 in order for him to enlist in RIC
1901 census at Bracklone, Portarlington South, Queen's Co.
1911 census at Kilkieran (Newmarket, Clare
1920 Jun 7 enlisted in RIC as # 71560. Gardener
1921 Jan 13 posted Clare
1928 Mar 28 disbanded
1922 Mar 28 enlisted in Palestine Gendarmerie as a Constable. He had been a Constable in RIC
1926 Feb 22. Shipwrecked
1940 Nov 4 appointed T/Skipper in RNR
1943 Jul 28 discharged from RNR, medically unfit. "not a good officer"
1963 Oct/Dec died Swansea Glamorgan