Seeking to find my uncle Daniel Gallagher or his family. He went to Australia possibly 1940-1950s from Londonderry,no. Irleland . His sister was my mother Mary Ellen Gallagher born 1920 Londonderry,he also has sister Kathleen who married a Lionel Wilson of England. His father was Daniel Gallagher and mother was possibly Sarah Green,step mother was Catherine McCool. Any help appreciated. Contact me at email@example.comThanks.