My great grandfather(Antonio George Kostis) and his brother(Sam Kostis) immigrated from Greece to the US and from there to Canada in the early 1900's. I know they shortened their name to Kostis, but I cannot find out what their original name is. The only info I have is that Sam was born in Dec 1893 in Constantinople, Turkey. Antonio DOB is 6 Jan 1896. Their parents are listed as Antonio Kostis and Mary Marcari Poulos which has also been shortened.