Marsh, Sir Henry, first baronet (1790–1860), physician, was born at Loughrea, co. Galway, son of Robert Marsh, rector of Killinane, co. Galway, and Sophia, daughter of William Wolseley, rector of Tullycorbet, co. Monaghan. Marsh's mother was a granddaughter of Sir Thomas Molyneux, physician and patriot. His paternal ancestry consisted of a long line of Anglican divines, the most celebrated being ...