I found this on the internet, and while this particular article refers to England I'm sure it is the same here. Hope this helps some. Monica British Army: Soldiers' Pensions, (1702-1913) Military Records Information 6 1. Introduction Charles II set up the Royal Hospital, Kilmainham, in 1679, and the Royal Hospital, Chelsea in 1681. The two hospitals, in Ireland and England respectively, reflected the separate army establishments for the two countries, which did not become joined until the Act of Union in 1800. Even then, it was not until December 1822 that the payment of Kilmainham out-pensions was taken over by Chelsea Hospital, and in-pensioners remained in Kilmainham until 1929, when the last transferred to Chelsea. 2. Entitlements to pension Soldiers who left the Army with a disabling injury, or as invalids or (for relatively few soldiers before the later 19th century) after completing an agreed term of service, were entitled to a pension from, or institutional care at, Chelsea or Kilmainham. A description of an ex-soldier as a 'pensioner' usually means he was in receipt of an out-pension from one of the military hospitals, not that he was an in-pensioner, actually resident in the hospital. The major series of records (and the first place to look for any soldier) resulting from the grant of a pension are the attestation and other discharge documents in WO 97 , covering 1756-1913: see British Army Soldiers' Discharge Papers (1760-1913), for more details. Regimental registers in WO 120 can include men not included in WO 97 . Soldiers on the Irish establishment had separate discharge records in WO 118 and WO 119 , until December 1822: after that they are included in WO 97 . Discharges under special conditions! , 1830-1870, are in WO 25/3850 to WO 25/3877 , arranged by regiment.