Name appears as "Georg" in letter from Anna Engelhorn to brother William Martin Barthell in 1892.
John G. Barthell appears in 1900 Federal Iowa Census in Winneshiek County, Decorah Township.
Age 78, born Aug. 1821, born in Germany, both parents born in Germany, year of immigration 1846, not naturalized, occupation Landlord
Wife, Sophia H., Age 67, born Aug. 1832, born in Germany, both parents born in Germany, year of immigration 1832.
Daughter, Hattie, Age 23, born July 1876
Son Howard F., Age 29, b. Oct. 1870, born in New York, parents born in Germany, occupation Lawyer
John Barthell appears in the 1910 Iowa Census Winneshiek County, Age 89, born in Germany, parents born in Germany,
Wife Sophia, Age 76, born in Germany, parents born in Germany
Daughter, Harriett (sp.?), Age 40, born in New York,, parents born in Germany