My father was born in Canada, moved with his family to the US as an infant in 1923. He served in the Canadian Army in World War 2 until medically discharged then joined the American Army and in 1944 became a US citizen. I was born in 1956 and raised in the US my entire life. I have an official Canadian birth certificate of his (though his first name was changed when arriving in US) and US naturalization papers. Am I eligible to get Canadian (dual) citizenship while living in the US?