She is not listed in the 1834 census, but her husband and children are. Her husband died in 1830, and, since she would have only been 55 years old at the time of his death, it's possible she remarried. All her children remained living in the same household as her son Johannes, including her two youngest children who were 14 and 16 years of age. It seems unlikely that she would have left her youngest children behind if she remarried and moved into the household of her new husband's family. For this reason, it is most likely that she, too, had passed away prior to the 1834 census.
Head of the Household Johannes Strecker, age 42 in 1816, deceased 1830
Child #1 Johann Jakob Strecker, age 24
Wife Child #1 Anna Margaretha Strecker, age 22
Grandchild #1 Katharina Strecker, age 5
Grandchild #2 Georg Peter Strecker, age 3
Grandchild #3 Georg Jakob Strecker, age 1
Child #2 Johann Adam Strecker, age 23
Wife of Child #2 Susanna Margaretha Strecker, age 22
Grandchild #4 Johannes Strecker, age 1 year month
Child #3 Johannes Strecker, age 19
Child #4 Elisabeth Strecker, age 16
Child #5 Friedrich Jakob Strecker, age 14
↑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 #36 in the 1798 census.
↑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 84, family #305, Johannes Strecker family.