Sean was the eldest son of Con and Agnes O’Donovan. ‹ Previous Chapel in Usk Prison. Con O’Donovan sent a postcard from Usk Prison in 1918. Next › Con O’Donovan – NI Driving Licence image. The licence was issued 23 August 1934. Sean was the eldest son of Con and Agnes O’Donovan. They had six children in all, Sean, Ellen (Nell), Margaret (Maeve), James (Jim), Cornelius (Conn), and Desmond (Des).