From an Ulster family, son of Samuel Cunningham and Janet Muir Knox
School - Royal Belfast Academical Institution, and Fettes College in Edinburgh
Admitted to Clare College in 1928 where he read English with Mansfield Forbes, was a member of the Dilettanti Society and heavy-weight boxing champion
In the 1930s he studied law and was called to the Bar by the Middle Temple in 1939
During the Second World War he served in the Scots Guards although he continued his legal studies, and called to the Bar in Northern Ireland in 1942
Fought the Belfast West by-election in 1943 and the same seat in the 1945 general election
In the 1955 general election he was chosen as the new Ulster Unionist MP for South Antrim
In 1959 he was made a Queen's Counsel
After the 1959 general election, he was picked by Prime Minister Harold Macmillan as his Parliamentary Private Secretary. When Macmillan resigned, he awarded Cunningham a baronetcy in his resignation honours
Remained on the backbenches, known as one to the right of Ulster Unionism and a friend of Ian Paisley.
He retired at the 1970 general election
1973-74 - Master of the Drapers Company
1970-1976 - Provincial Grand Master of the Masonic Order in Gloucestershire
Member of the Apprentice Boys Club in Derry a
He died on 29 July 1976 aged 76
Military intelligence, the RUC and victims named Cunningham as a paedophile and identified his close links to the sex offender ring at Kincora Boys' Home, but MI5 denies this