Royal Flying Corps ended in 1918.
Royal Pioneer Corps ended in 1993.
Royal Army Service Corps ended in 1965.
Royal Air Force which meant it was a separate branch of service. The US did not get its independent air force until 1947.
Royal Army Dental Corps was created in 1921.
Royal Army Medical Corps was created in 1898.
Royal Flying Corps was created in 1912.
Royal Flying Corps Canada was created in 1917.
The "Royal Flying Corps". It evolved into the RAF on the 1st April 1918
Royal Pioneer Corps ended in 1993.
Royal Defence Corps ended in 1936.
Royal Corps of Transport ended in 1993.
Royal Observer Corps ended in 1995.
Archibald Christie was an aviator in the Royal Flying Corps during World War I.
Royal Army Service Corps ended in 1965.
Women's Royal Army Corps ended in 1992.
Royal Army Ordnance Corps ended in 1993.
Royal Australian Survey Corps ended in 1996.