Regarding Cormick, unfortunately I have no information. I am reply to your query simply because I never come across Kilgannons. My father Cyril Thomas John Kilgannon was born on the island of Jersey while his father John Kilgannon was serving in the 1st btn of the Devon Regiment during World War One. John was killed in the war in France. He had two sisters Annie who married Mr Dash in Exeter and Louisa (named after her mother) who married a German. John Kilgannon may have had a brother, or not. We don't know. He married Agnes Gillard of Broadclyst, Devon. We believe John Kilgannon was born in Preston, Devon, which is part of Paignton. We also believe his grandfather was a Patrick Kilgannon who died in County Mayo, but this is all word of mouth. Also word of mouth is that our Kilgannon family came from County Sligo. Any information on my family of Kilgannons? then contact me at my email addy. Thanks.