He was the son of Captain Moloney (of A. Moloney & Sons) merchant and shipowner of Priory House, Dungarvan. Dr. Moloney was educated at the Augustinian College, Dungarvan. He attended Clongowes from 1900-1905. He graduated  MB, BCH, BAO from the National University of Ireland in 1911. In 1914 he was appointed Coroner for west Waterford. He had a keen interest in the Irish language and took an active interest in the Irish Independence movement. He was arrested and imprisoned in 1920. In his capacity as a doctor he was called on to attend the wounded republican leader, Liam Lynch. Dr. Moloney was also interested fishing and hunting. He was President of the local St. Vincent de Paul.

He qualified as a pharmacist in 1918 and he had a pharmacy attached to his surgery in Mary Street. In 1919 he wrote a book titled: 'Luibh - Sheancas or Irish Ethno - Botany and the Evolution of Medicine in Ireland'. His name appears in Irish on the cover. The book deals with the use of native herbs by the hereditary physicians of the Irish clans. Dr. Moloney built his own house at the Youghal Road and had designed a herb garden. He died on 4 February 1934.