How do I locate ancestor records from Greece from the mid- to late- 1800s?

User15902676816643718205

How do I locate ancestor records from Greece from the mid- to late- 1800s?

I am trying to locate some great, great grandparents who are from Greece. Their son (my great grandfather) immigrated to the United States in 1910, but his parents and brother stayed behind in Greece. I have records for my great grandfather, but have nothing for his parents and the rest of his family. The likely birth dates for my great, great grandparents are anywhere between 1830 and 1873 and their likely death dates are between 1901 and 1943. I just don't know how to go about identifying Greek records. I have not been successful using any of the partner site search engines or Family Search to locate anything. Does anyone have any suggestions for how to proceed? Thank you! Sincerely, Amber

Dennis J Yancey

This may be a start: https://www.familysearch.org/wiki/en/Greece_Genealogy