Army Medical History: British research including the Royal Army Medical Corps, Royal Army Veterinary Corps, Royal Army Dental Corps, and Queen Alexandra's Royal Army Nursing Corps. Investigations are undertaken by Lesley J Burnett from Aesculapius Research which is based in Camberley, UK.
Great War Family Research: Providing professional services that assist in locating soldiers service records, piece together their Great War history, and provide the information necessary to walk in their footsteps.
Great War Searches: Ancestral investigations pertaining to the British Armed Forces during WWI, undertaken by Lawrence R Woodcock. Based in London, ENG.
Hartslog: Civil War pension searches, records held by the National Archives in Washington DC. Based in Woodbridge, VA USA.
Nixon, Roger E: Specialised searches at the PRO and primary London repositories including army, navy, merchant service, occupational and other UK historical records.
Robinson, Richard S: Specialist in Royal Air Force and prisoner of war history. Based in West Wittering, West Sussex, ENG.
Roll-Call Research: Professional investigators specializing in the US Civil War. Based in Alexandria, VA.
Transatlantic Children's Enterprise: Non-profit, self-help support group whose aim is to help people trace their American GI fathers and families. Includes free e-mailing list.