Mrs. Anna Gertrude Gundlach is buried at Oakland Cemetery in Sandusky. Information accessed at FamilySearch provide these details about Mrs. Gundlach:
Anna G. Giesse was born in Melsungen, Germany in the province of Hesse-Kassel on August 1, 1829. Her parents were Johann Giesse and Anna Wenk. She married Leonard Gundlach on February 12, 1846. Mrs. Anna Gerturde Giesse Gundlach passed away on April 14, 1884.
In the 1880 U.S. Census for Erie County, the listing for the family gave the surname spelled as Grunlach:
Leonhard Grunlach was 64, birthplace Hesse
Gertrude Grunlach was 60, birthplace Hesse
Christopher, was 23, born in Ohio
Justus, was 20, born in Ohio