 He was called to the Bar, but is better remembered today as a noted collector of Irish music, and for playing a leading role in founding the National Gallery of Ireland, of which he was one of the original Governors.Thomas (1837-1910), the youngest son, was a highly regarded engineer; Jonas Quain (1834-1913) was a barrister who became a judge in Calcutta.His daughter Marie married in 1856 the leading physician Robert Dyer Lyons.