Hello, could anyone answer a question I have about my citizenship? My father was born in Ontario, Canada in 1931. He came with his mother and adopted father to Detroit, U.S.A. as a child. I don't know if he officially became a American citizen. He married my American Mother. I know he never renounced his Canadian citizenship. I was born in the U.S. in 1961. Am I, and are my children, (born 1998 and 2000) Canadian citizens?? I cannot talk to anyone that knows 100% for sure if I am or my children could be.