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IT IS KNOWN IN OUR FAMILY THAT HE LEFT U.S.A. ON THE NOVEMBER OF 1912 TO RETURN IN GREECE AND FIGHT AS A VOLUNTEER AT THE BALKAN WARS.
AFTER THE END OF THE WAR HE RETURNED BACK TO U.S.A.
1.I WOULD LIKE TO KNOW WHAT WAS THE EXACT DATE HE LEFT U.S.A. IN 1912 THE NAME OF THE SHIP AND THE PORT OF ARRIVAL IN EUROPE(THE DESTINATION).
There is no passenger list online of his leaving the US or arriving in Greece.
2. I WOULD LIKE TO KNOW WHEN DID HE CAME BACK TO GREECE WITH HIS BROTHER DEMITRIOS AT THE DECADE OF 1930.(THE EXACT DATE OF DEPARTURE,THE NAME OF THE SHIP AND THE DESTINATION OF THE SHIP IN EUROPE).
There is no record online of either of them leaving or entering Greece. Of course, Greece has never put records online.
Most passenger records are not available online.
You may be able to see if the archives in Greece have information on old passenger records, but they are not online. The US also doesn't have much information on departing passengers, just those entering the USA, and not many after about 1925 are available online.