The Postmasters General of Ireland, held by two people simultaneously, was a new appointment set up as part of the establishment of the Irish Post Office independent from that of Great Britain, by the Act 23 & 24 Geo 3 c. 17 (I) in 1784. The post lasted nearly fifty years.[1] The act was not repealed upon the Act of Union in 1800[2] but in 1831.[3]