Nassau County John Doe was a man who was found floating at the mouth of the river of the same name on September 17, 1904, in Nassau County, Florida.
His body was found floating at the mouth of the Bell River on September 17, 1904, in Nassau County near Fernandina Beach, Florida. He had been dead for several days. After he could not be identified he was buried at Bosque Bello Cemetery on September 18, 1904. Little other information is available in his case.
- He had tattooing "all over body", but no further description of this is provided.