Cusack achieves his most famous victory on April 15, 1974, by winning the Boston Marathon, becoming the first and only Irishman to do so. His time of 2:13:39 is the third-fastest in Boston Marathon history at that point. His Boston win is a source of immense pride for the Irish community, especially in Boston. He recalls receiving $10 and $20 bills from Irish Americans in the mail with notes like “Have a beer on us, we’re proud of you!” His victory helps soothe the disappointment of local Irish fans who had seen fellow Irish runner Pat McMahon come close in previous years.
In 2024, on the 50th anniversary of his Boston win, Cusack returns to serve as the official race starter for the professional men’s division of the Boston Marathon.
Now in his 70s, Cusack remains a celebrated figure in Irish athletics and marathon history.
In November 1938, Lord Killanin is commissioned into the Queen’s Westminsters, a territorial regiment of the British Army, where he is responsible for recruiting fellow journalists, including future The Daily Telegraph editor Bill Deedes, and friends who are musicians and actors. He reaches the rank of major and takes part in the planning of D-Day and the Invasion of Normandy in 1944, acting as brigade major for the 30th Armoured Brigade, part of the 79th Armoured Division. He is appointed, due to the course of operations, a Member of the Order of the British Empire (MBE). After being demobilised, he goes to Ireland. He resigns his TA commission in 1951.
In 1950, Lord Killanin becomes the head of the Olympic Council of Ireland (OCI) and becomes his country’s representative in the IOC in 1952. He becomes senior vice-president in 1968, and succeeds Avery Brundage, becoming President-elect at the 73rd IOC Session (August 21–24) held in Munich prior to the 1972 Summer Olympics. He takes office soon after the Games.
Lord Killanin serves as Honorary Consul-General of Monaco in Ireland from 1961 to 1984 and as Chairman of the Race Committee for Galway Racecourse from 1970 to 1985. A keen horse racing enthusiast, he also serves as a steward of the Irish Turf Club on two occasions and on the National Hunt Steeplechase Committee. In his business life Lord Killanin is a director of many companies including Irish Shell, Ulster Bank, Beamish & Crawford and Chubb Ireland. He is a founder member of An Taisce (The National Trust for Ireland) and is chairman of the National Monuments Advisory Council until his death.
Lord Killanin dies at his home in Dublin on April 25, 1999, at the age of 84 and, following a bilingual funeral Mass at St. Enda’s Church in Spiddal, County Galway, he is buried in the family vault in the New Cemetery, Galway.