We are not certain if my great great uncle Ernest Constantine Ekonomon (sometimes spelled Ekonomou or Economou) born January 01, 1901/1902 (sometimes the date of birth varies a little) was in the service of sort (USA Navy or Coast Guard, etc.)
We believe this is a picture of him.
He was born in Greece, and his father is Constantine (or Konstantine or Konstantino). He lived in New York for many years and also Connecticut. He came to the USA around 1911/1912. He worked as a shoemaker for a while.
Thanks for the help in solving this mystery.