Fare Thee Well Enniskillen is the title of the regimental march of the Enniskillen Dragoons, and is most likely trad. I have an older album of the Marches of the British Army which I cannot lay my hands on in the dark which includes that along with other well known trad tunes such as My Boy Willie (Royal Tank Corps) the Linclonshire Poacher (the Lincolnshire Regiment) and others that have slipped my mind.

-- Tom