Oweb Moore was born in Fordstown Crossroads, County Meath, Ireland, and along with his brothers Tom, Matt, and Joe (1895–1926), and sister Mary (1890–1919), he emigrated to the United States as a steerage passenger on board the S.S. Anchoria and was inspected on Ellis Island in May 1896. All went on to successful careers in motion pictures in Hollywood, California.  He died in 1939 in Beverly Hills, California at the age of 52.