Walburg Schaefer was born about 1805, in or near Marlen, Offenburg, Baden, Germany, the daughter of Joseph Schaffer and his wife Kaethrin Higel. In some records, her name is spelled Wallburg.
Walburg Schaefer, age 23, married Johann Maier or Meyer, age 29, the son of Konrad Meyer and Franziska Fehrenbach, on January 14, 1828, in Marlen, Offenburg, Baden-Württemberg, Germany, and had children:
Kunigunde Maier, born March 4, 1830, in Marlen, Offenburg, Baden, Germany, who married George Ent born June 1814 in Marlen, no parents names given. They married August 23 1858 in Marlen. She was 28 years old at the time of marriage.
Magdalena Maier, born March 20, 1836, in Marlen, and baptized in the Catholic church in Marlen, Offenburg, Baden, Germany, who married Ferdinand Ritt, born August 14, 1835, son of Andreas Ritt and Katherina Schaefer. She married on May 8, 1865, the same day as her younger sister Franzisca, and was 29 years old at the time of marriage
Franziska Maier, born 1840 and baptized in the Catholic church in Marlen, Offenburg, Baden, Germany who married Joseph Herrmann, son of Stephen Herrmann and Barbara Kraemer of Marlen on May 8, 1865, in Marlen, had ten children and immigrated to Erie, Pennsylvania, USA about 1882. She was 25 years old at the time of marriage.
Two other siblings whose names are not known and who died as babies in Marlen, Offenburg, Baden, Germany.
Sources
"Deutschland Heiraten, 1558-1929," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:VZSC-SK6 : 11 February 2018), Josef Hermann and Franziska Maier, 08 May 1865; citing Katholisch, Marlen, Offenburg, Baden; FHL microfilm 948,988.
"Deutschland Heiraten, 1558-1929," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:VZSC-3K8 : 11 February 2018), Johann Mayer and Wallburg Schaefer, 14 Jan 1828; citing Katholisch, Marlen, Offenburg, Baden; FHL microfilm 948,988.