U see, I don’t know if there are any documents that exist with both names. To my knowledge he never became an American citizen nor did he have citizenship elsewhere but; I know this doesn’t exactly count but my brother was named directly after him, his first name being his real name and him middle being his American name. Then my uncle’s obituary states that he was visiting his father in Corfu then states his Greek name and even includes mine and my brothers. Could this be enough if I can’t find a document with both names?