<sod>On 10 March 1961, Mates transferred from the Royal Ulster Rifles to [[1st The Queen's Dragoon Guards]].<ref name="LG 7 March 1961">{{London Gazette |issue=42296 |date=7 March 1961 |startpage=1799 |endpage= |supp=yes |accessdate=03 April 2016}}</ref><eod>
<sod>On 10 March 1961, Mates transferred from the Royal Ulster Rifles to [[1st The Queen's Dragoon Guards]].<ref name="LG 7 March 1961">{{London Gazette |issue=42296 |date=7 March 1961 |startpage=1799 |endpage= |supp=yes |accessdate=03 April 2016}}</ref> He was promoted to [[Captain (British Army and Royal Marines)|captain]] on 9 June 1961.<ref name="LG 6 June 1961">{{London Gazette |issue=42380 |date=6 June 1961|startpage=4275 |endpage= |supp=yes |accessdate=03 April 2016}}</ref><eod>