Denis Daly was born at Main Street, Caherciveen in 1886. He studied in London and joined the civil service there. He met Michael Collins in London and joined the Irish Republican Brotherhood in the city in 1913. Collins and he returned to Dublin in 1916 to avoid conscription to the British army and to assist with plans for a rebellion. Daly became a member of team which was asked to seize wireless communication equipment in Caherciveen which was to be used to contact The Aud, a ship travelling from Germany with guns and ammunition for the Rising. The group including Colm Ó Lochlainn, Con Keating, Charles Monaghan travelled in two cars from Killarney towards Caherciveen on Good Friday. The car containing Keating, Sheehan and Monaghan, driven by Thomas McInerney, took a wrong turn in Killorglin and drove off the end of Ballykissane Pier – only McInerney survived. Daly made his way back to Dublin on Easter Saturday.
He was based at the GPO in the following days and his unit was responsible for the ground floor. He was a member of a group led by The O’Rahilly, which, on Friday 29 April, charged a British army barricade on Moore Street, an assault which claimed the lives of The O’Rahilly along with Patrick O’Connor from Rathmore, Michael Mulvihill from Ballyduff and Patrick Shortis of Ballybunion. Daly was arrested and interned in Stafford Jail before being removed to Frongoch. Following his release in December 1916, he was appointed captain of the Caherciveen Company of the Irish Volunteers and was active during the War of Independence. Opposing the Anglo-Irish Treaty, Daly was captured at Caherciveen during the Civil War in March 1923 and jailed. Daly served one term in the Dáil as a TD for the seven-seat Kerry constituency between 1933 and 1937. Daly died in 1965.