Major-General Sir Thomas Aiskew Larcom, 1st Baronet PC

Privy Council of Ireland

The Privy Council of Ireland was an institution of the Kingdom of Ireland until 31 December 1800 and of the United Kingdom of Great Britain and Ireland 1801-1922...

 FRS (24 December 1801 – 15 June 1879) was a leading official in the early Irish Ordnance Survey

Ordnance Survey Ireland

Ordnance Survey Ireland is the national mapping agency of the Republic of Ireland and, together with the Ordnance Survey of Northern Ireland , succeeded, after 1922, the Irish operations of the United Kingdom Ordnance Survey. It is part of the Public service of the Republic of Ireland...

 that started in 1824. He later became a poor law commissioner, census commissioner and finally executive head of the British administration in Ireland as under-secretary

Under Secretary for Ireland

The Under-Secretary for Ireland was the permanent head of the British administration in Ireland prior to the establishment of the Irish Free State in 1922....

 to the Lord-Lieutenant of Ireland, a position the government of the day was eager for him to take.

The longest-serving under-secretary (1853–1868), and a man of unusual abilities, Larcom had a distinguished career in his adopted country and acted with an impartiality that won him respect from all parties. In 1868 he was admitted to the Irish Privy Council and created a Baronet.