According to Dr. John P. Siegfried's death certificate,available at Family Search Labs, he was born on June 3, 1855 to John Siegfried and Anna Margaret Wolf Siegfried. His obituary, which appeared in the December 14, 1915 issue of the Sandusky Register, stated that Dr. Siegfried died on December 16, 1915, in the same house in which he was born, at 220 East Monroe Street in Sandusky, Ohio.
Dr. Siegfried moved from Sandusky to White Pigeon, Michigan in 1889, and then he was called to be a physician in Ashtabula, Ohio,in 1893. Dr. Siegfried was survived by his wife,the former Theresa Fuchs; a daughter Irene Elizabeth, and a son Rudolph Siegfried. He was also survived by four sisters, who all lived in Sandusky, and a brother, Henry Siegfried, of Lemore, California. Dr. John P. Siegfried was buried in the North Ridge section of Sandusky's Oakland Cemetery.