Corrigan was educated at the Royal School, Armagh, and the Royal Military Academy Sandhurst. He served in the British Army's Royal Gurkha Rifles, mainly in the far east, and reached the rank of major.
Corrigan studied at the Royal School, Armagh, and Sandhurst Military Academy. He served in the British Army's Royal Gurkha Rifles, mainly in the far east, and reached the rank of major.