The “older John, born 1899” question that has hovered over the Jeannopoulos generation since the first family-research pass. The only documentary trace we have for someone matching the profile is the 1930 SS Saturnia arrival manifest, which records a passenger named John Jeannopoulos with that birth year.
That’s it. He may have been a real son of Lazaros and Eftyhia born twelve years before Takis — in which case his trail after the 1930 arrival is one of the deepest blanks in the family record. Or the name and approximate age were coincidental and we are seeing an unrelated person.
Carrying him here with uncertain_existence: true so that the question stays in front of us and the SS Saturnia record stays linked to a living slug.