Son of the late Francis Augustine Leigh, J.P., D.L., formerly 10th Hussars and Mrs Augustine Leigh née Perrier of Rosegarland, Co. Wexford. He was educated at St. Columba's College, Co. Dublin. Husband of Mary Meade Leigh, only daughter of Sir John Buchanan, L.L.D., of Clareinch, Claremont, Cape Peninsula, South Africa. Served in the South African Campaign and in India, Malta and the British West Indies. He left one son, Edward Buchanan Leigh, born at Vacoas, Mauritius on the 19th June, 1913.
Awarded Queen's South Africa Medal with three clasps and King's South Africa Medal with two clasps.