Royal Ulster Rifles: www.royalirishrangers.co.uk/rifles
Royal Irish Fusiliers: www.royalirishrangers.co.uk/irish
UDR Association: www.udrassociation.org
The Royal Irish Regiment: www.royal-irish.com
Somme Heritage Centre: www.irishsoldier.org
Army Museums Ogilby Trust: www.armymuseums.org.uk
Military Heritage of Ireland Trust: www.irishsoldiers.com
Royal Dragoon Guards: www.rdgmuseum.org.uk
The National Archives: www.nationalarchives.gov.uk
Commonwealth War Graves Commission: www.cwgc.org
British Army in the Great War of 1914-18: www.1914-1918.net
National Malaya and Borneo Veterans Association: www.nmbva-ulster.co.uk