, of Portavoe and London. Of Ker, Pope & Dyson and later as Ker, Brookland & Priest. In 1785 he purchased the Clough and Magheraknock estates in Co. Down from Arthur Annesley and in 1800 that of Montalto at Ballynahinch, Co. Down, from the 2nd Earl of Moira. In 1796 David was successfully returned to the Irish House of Commons representing Blessington, Co. Wicklow, then controlled by Lord Downshire.