Dora Theuerkauf
Born in 1862, her given name was Dorthea, and she was baptized in 1863 in Hannover Lutheran Church north of Cape Girardeau.
She was the 6th of 7 children.
Her father William was a farmer and baker. He operated the Theuerkauf Bakery on the southwest corner of Broadway and Sprigg.  According to City Land Tax records, he owned 4 lots in 1872, 9 lots in the city in 1885.  By 1890, the number had grown to 15.  William died in 1889, and was buried in the old Lorimier Cemetary in Cape Girardeau. Dora's mother was Johanne Sophia Allers (1825-1869). William and Johanne were married 30 Nov 1851 in Cape Girardeau. Both were German immigrants.
It's not known when he began his bakery business, but after he died in 1889, his daughter Hermina Bremmerman took over the business.
Dora worked in St. Louis, living with her older brother Frederick, who was a baker in St. Louis.  Her younger sister Alvina also worked in St. Louis, also living with her brother at 1833 Garrison Ave. in St. Louis.
On 8 June 1892 Dora married Carl Kessler, who was from Peoria, Illinois. 
Marriage License (PDF file format-191 Kb) They were married in St. Marks Lutheran Church, the same church where  Alvina married Edward F. Regenhardt 9 Sep 1891.
In the 1889-1890 St. Louis City Directory listing, Charles Kessler and Anthony Kessels operate a grocery at 1427 Benton Street. Charles lives next door at 1425 Benton.
In the 1891-1892 directory, Carl Kessler is working as a driver in St. Louis.  Could he be a grocery driver for his uncle/father/brother/cousin, Charles Kessler?
The 1892 -1893 City Directory microfilm was missing when I was doing this research in May, 2003 at the St. Louis County Library.
In the 1893 - 94 directory, Henry Regenhardt (older brother of Edward) is listed as a grocer at 1427 Benton Street.  There is no listing for Carl Kessler. I'm thinking that he and Dora moved to Peoria.  There is no listing for Charles Kessler.  Perhaps Henry has bought the grocery business from Charles Kessler and Anthony Kessels.
In the 1894  - 95 directory, Henry is again listed as a grocer at 1427 Benton Street.  Then in the 1895 - 96 directory, Edward Regenhardt is listed as a grocer at 1427 Benton.
I have found out very little about Carl and Dora in Peoria. 
The 1920 Census lists Dora W. Kessler, a widow, living as a boarder at the home of John and Emma Walter at 200 Montana Street in Peoria.   So, Carl has died before 1920.  Carl died 25 Feb, 1912 per Oak Hill Cemetery, Butler, Missouri records and tombstone.

Dora Theuerkauf passed away 5 August 1928 at the home of her sister, Alvina Regenhardt, in Cape Girardeau.  Burial was in Oak Hill Cemetery in Butler, MO.  Butler is in Bates County. Bates County is south of Kansas City on the Missouri-Kansas state line.
Dora's husband, Carl Kessler was also buried in the Oak Hill Cemetery, as were her sister, Hermina and her husband, Arnold Bremmerman and their 1 year-old son Fritz.