This is the tombstone of Andrew M. and Elisabeth Kallenberger located in row 1 of Zion Lutheran Cemetery, Chattanooga, Liberty Township, Mercer County, Ohio. The marker is inscribed:
Father & Mother
Feb. 22, 1830-Nov. 7, 1914
Elisabeth his wife
Dec. 21, 1841- Apr. 16, 1935
Andreas Michael Kallenberger was born 22 February 1830 and christened 24 February 1830 at the Evangelical Church in Kleiningersheim, Neckarkreis, Württemberg. His parents were Ludwig and Christina Margaretha (Buerkle) Kallenberger. 
Andrew married Elisabeth (Burkhart) on 24 February 1870 in Mercer County, Ohio.  According to the records of Zion Lutheran Church, Chattanooga, Andrew Kallenberger died of old age on 7 November 1914. He was 84 years, 8 months and 16 days old. Andrew was buried on the 10th and Rev. Gahre officiated at his burial. Survivors included his widow, 3 daughters, 1 son and 16 grandchildren.
Elisabeth (Burkhart) Kallenberger was born 21 December 1841 in Tuscarawas County, Ohio, according to Zion’s records and her tombstone. She was the daughter of George Michael and Marguerite Burkhart.
Aged Woman Dies of Heart Trouble—Mrs. Elizabeth Kallenberger, 93 years of age, died at 8:30 o’clock Tuesday morning at the home of her daughter, Mrs. Wm. Hoehammer, about four miles south and one mile east of Willshire, of heart trouble. She had been ill only a short time.
Mrs. Kallenberger is survived by three daughters, Mrs. Fred Allmandinger of Ohio City; Mrs. Nicholas Huber of St. Marys and Mrs. W. Hoehammer, where she made her home; one son, Mike Kallenberger, four miles south of Willshire, and many relatives and friends.
Funeral will be held Thursday afternoon at 2:00 o’clock in the Zion Lutheran Church in Chattanooga. 
Andrew and Elizabeth had three children: Johann Michael, born 16 March 1871, married Maggie Rueck Miller; Elisabeth Margaretha, born 10 January 1874, married William Hoehammer; Anna Catharine, born 14 November 1875, married Friedrich Allmandinger.
The beautiful stained glass window on the west wall of Zion Lutheran Church, Chattanooga, was donated in memory of Andrew and Elizabeth Kallenberger. The church was built in 1916.
Elisabeth Burkhart was the second wife of Andrew Kallenberger. Andrew was first married to Margaretha Kessler, the daughter of Christian and Margaretha (Kable) Kessler. Margaretha was born 29 September 1842 in Fechingen, Rhein-Prussia. Andrew and Margaretha married 25 March 1865 in Mercer County.  She died 10 August 1868 at the age of 26 years, 4 months and 21 days. One child born to Andrew and Margaretha was listed in Zion’s church records, Christina Barbara Kallenberger, born 25 January 1866 and baptized 6 May 1866. Christina married Nicholas Huber on 26 January 1896 at Zion. Although Margaretha Kallenberger’s death and burial was recorded in the church records, her tombstone cannot be located in the church cemetery.
Interesting, because I am related to the Kesslers, so Margaretha (Kessler) Kallenberger was my first cousin three times removed. Her father and my great-great-grandmother (Marie, mother of Jacob Miller) were brother and sister. There is another connection to my family. Maggie (Rueck Miller) Kallenberger was my grandaunt. Maggie was Jacob Miller’s step-daughter.
 Germany, Births and Baptisms, 1558-1898,” index, FamilySearch (https://familysearch.org/pal:/MM9.1.1/V41C-442 : accessed 05 Nov 2012), Andreas Michael Kallenberger, 22 Feb 1830; citing reference 2:1SHVRHV, FHL microfilm 1184931.
 Mercer County Marriage Book Vol 3: 246, Probate Office, Celina, Ohio.
 The Willshire Herald, Willshire, Ohio, 18 April 1935, page 1.
 Mercer County Marriage Book Vol 3:82, Probate Office, Celina.