Here is some more Jerger research. Please contact me if you have anything to add!

1.1a Joseph Jerger
Birth: 19 Dec 1819, Balzhofen, Baden, Germany
Death: 6 Dec 1903, age: 83
Spouse: Appolonia HABIG
Birth: 1826, Germany
Death: 19 Jul 1849, Dubois County, Indiana, age: 23

Other spouses: Maria Anna BIRK
Birth: 2 Feb 1828/29, Germany
Death: 6 Oct 1896, Indiana, age: 68
Father: Josef BIRK (1801-1859)
Mother: Genoveva FUSS (FUHS) (1801-1865)
Marr: 14 Oct 1850

Children: Aloysius Felix (1851-1911)
Joseph (1853-1887)
John (1854-1929)
Stephen (1856-1858)
Mary Ann (1859-1926)
Katherine (1862-1927)
Josephine (1866-1933)
Lawrence F. (1868-1950)
Theresa (1871-1876)
Rosalia

In 1850 Joseph lived in Bainbridge.
In 1860 the family lived in Bainbridge Township, Dubois County, Indiana. Their last name is written “Gerger” on the census. They had a boarder named Francis Duffers.
In 1880 the family lived in Jasper, Dubois County, Indiana. Joseph Sr. was a farmer and Alois and John worked the land, too. Joseph, Jr. was already married. Stephen had died and Mary Ann was out of the house.
In 1900 Joseph lived with his son Lawrence and his wife, Helena in Bainbridge.
In 1910 Joseph lived with his son Lawrence and his family in Bainbridge, IN.