According to the 1834 census, he and his son, Johann Friedrich, born in 1812, moved to Galka in 1825. His wife is not listed. Women were not listed in the interim censes (1816-1817), so she may still have been living and moved to Galka with her husband and son.
Head of the Household Johann Christoph Eberhardt, age 52 in 1817, deceased 1824
Child #1 Georg Adam Eberhardt, age 26 in 1816, to Galka in 1825
Grandchild #1 Johann Friedrich Eberhardt, age 3 years 6 months in 1816, to Galka in 1825
Child #2 Georg Michael Eberhardt, age 22 in 1816, died 1816
Grandchild #2 Katharina Margaretha Eberhardt age 17
Child #3 Johann Friedrich Eberhardt, age 33
Wife of Child #3 Barbara Eberhardt, age 35
Grandchild #3 Anna Margaretha Eberhardt, age 15
Grandchild #4 Louisa Katharina Eberhardt, age 13
Grandchild #5 Katharina Margaretha Eberhardt, age 11
Grandchild #6 Katharina Elisabeth Eberhardt, age 8
Grandchild #7 Elisabeth Margaretha Eberhardt, age 6
Grandchild #8 Elisabeth Katharina Eberhardt, age 4
Grandchild #9 Karl Wilhelm Eberhardt, age 1 years 9 months
↑The 1775 and 1798 Census of the German Colony on the Volga, Lesnoy Karamysh, also known as Grimm; Published by the American Historical Society of Germans from Russia, Lincoln, Nebraska, USA; Published date: 1995; family #59, Christoph Eberhard family.
↑1834 Census of Grimm in the District of Saratov, Russia, dated 2 February 1835; Translated by Brent Mai, Concordia University, Portland, Oregon; Published by Dynasty Publishing, Beaverton, OR, USA; Published 2011; page 9, family #24, Johann Christoph Eberhardt family.