Johann Georg Barthmann / K. Barbara Müller
Man
| Name | Place of Birth | Date of Birth | Place of Death | Date of Death |
 Johann Georg Barthmann | Vordorf, Vordorf, Wunsiedel, Upper Franconia, Kingdom of Bavaria, German Confederation | 19 February 1856 | Sac City, Sac County, Iowa, United States | 20 September 1921 |
Woman
| Name | Place of Birth | Date of Birth | Place of Death | Date of Death |
 K. Barbara Müller | German Confederation | November 1853 | Carnarvon, Sac County, Iowa, United States | 11 March 1940 |
Children
| Name | Place of Birth | Date of Birth | Place of Death | Date of Death |
Family Events
| Event Type | Date | Place | Description |
 Marriage | abt 1879 | Germany | |
| Census | 4 May 1885 | Clinton Township, Sac County, Iowa, United States | |
| Census | 16 April 1895 | Sac Township, Sac County, Iowa, United States | |
| Census | 12 June 1900 | Viola Township, Sac County, Iowa, United States | |
| Census | 1905 | Viola Township, Sac County, Iowa, United States | |
| Census | 21 April 1910 | Jackson Township, Sac County, Iowa, United States | |
| Census | 15 January 1915 | Jackson Township, Sac County, Iowa, United States | |
| Census | 15 January 1920 | Jackson Township, Sac County, Iowa, United States | |