Du Pré Alexander, 2nd Earl of Caledon KP, styled The Honourable Du Pré Alexander from 1790 to 1800 and Viscount Alexander from 1800 to 1802, was an Irish peer, landlord and colonial administrator, and was the second child and only son of James Alexander, 1st Earl of Caledon.

The Royal Tyrone Militia, later the Royal Tyrone Fusiliers, was an Irish militia regiment raised in 1793 for home defence and internal security during the French Revolutionary War, seeing action during the Irish Rebellion of 1798. It was later embodied during all of the UK's major wars. In 1881 it became a battalion of the Royal Inniskilling Fusiliers and during World War I, as part of the Special Reserve, it trained thousands of reinforcements for battalions of that regiment serving overseas. Postwar it retained a shadowy existence until it was formally disbanded in 1953.