This is the tombstone of Caroline (Hoffmann) Hoffmann, located in row 6 of Zion Lutheran Cemetery, Chattanooga, Mercer County, Ohio. The marker is inscribed:
Oct. 16, 1823
July 18, 1912
Aged 88 y, 9 m, 2 d
According to Zion Chatt’s Familienbuch Caroline Hoffmann was born 16 October 1823 in Fechingen, the daughter of Jacob and Margaretha (Schmeer) Hoffmann. Caroline married Jacob Hoffmann in Germany in 1846 they had a son Ferdinand, who was born in Germany in 1847. The family came to America in 1849 and settled in Mercer County, Ohio.
According to Zion Chatt’s records Caroline’s parents and her siblings also came to America in 1849. They may have all immigrated together and come directly to Mercer County. They likely knew someone that had already settled in this part of Ohio.
Jacob and Caroline Hoffmann lived in Liberty Township in 1850: Jacob, 34, Caroline, 30, and Antone, 3. All were born in Germany. They were living with Caroline’s parents Jacob and Margaretha. I assume Antone was their son Ferdinand. Jacob and his father-in-law Jacob Hoffmann were both farmers. Some of their neighbors included Christian Kessler, Adam Bollenbacher, John Fisher, and Henry Kuhn. 
In 1860 three Hoffmann families lived next door to each other with a Skeels Cross Road post office address. They were Caroline’s parents, Jacob and Margaret; Jacob and Caroline Hoffmann; and Fred and Elizabeth Hoffman, likely Caroline’s brother and his wife. 
Caroline’s father Jacob died in 1863 and in 1870 four generations of Hoffmanns were living with son Ferdinand and his family–Jacob, 48; Caroline, 48; Ferdinand [son], 23; Barbara [daughter-in-law], 23; Mary, 1; Caroline, 2 months; and Margaret [Caroline’s mother], 75. Mary and 2-month Caroline were likely Ferdinand’s children. Caroline’s mother Margaret/Margaretha was shown as “infirm,” probably indicating that she was not in good health or unable to get around. Jacob’s occupation was retired farmer. It is also interesting to note that the enumerator indicated that Caroline “lives with son.” Censuses before 1880 usually do not show relationships. 
Caroline’s mother Margaretha Hoffmann died in October 1872. Caroline’s husband Jacob Hoffmann died 24 January 1875, at the age of 52 years, 2 months, and 2 days. He is buried two tombstones away from his wife, in the same row.
In 1900 Caroline, at age 79, lived with her son Ferdinand. This census indicates that she had given birth to one child who was still living. 
Caroline (Hoffmann) Hoffmann died 18 July 1912, at the age of 88 years, 9 months, and 2 days. She was buried on the 20th. Zion Chatt’s records and her death certificate give her cause of death as gangrene. The church record also indicates that she was survived by Mr. & Mrs. Ferdinand Hoffmann, their descendants, as well as Mrs. Deitsch and August Hoffmann.
Jacob and Caroline (Hoffmann) Hoffmann had one child:
Ferdinand (1847-1929), married Barbara Schott
Interesting that Caroline was a Hoffmann who married a Hoffmann. Caroline’s father was Jacob Hoffmann and she married a Jacob Hoffmann. In some records the name is spelled Hoffman and even Huffman, as it is engraved on their son Ferdinand’s tombstone.
 1850 U.S. Census, Liberty, Mercer, Ohio, p.286B, dwelling 11, family 12, Jacob Hoffman; Ancestry.com (accessed 19 Feb 2017); NARA microfilm M432, roll 710.
 1860 U.S. Census, Liberty, Mercer, Ohio, p.358, dwelling 997, family 1002, Jacob Hoofman; Ancestry.com (accessed 20 Feb 2017); FHL microfilm 805009, NARA microfilm M653, roll 10098.
 1870 U.S. Census, Liberty, Mercer, Ohio, p.149A, dwelling 111, family 102, Jacob Hoffman; Ancestry.com (accessed 19 Feb 2017); FHL microfilm 552742, NARA microfilm M593, roll 1243.
 1900 U.S. Census, Liberty, Mercer, Ohio, ED 85, p.9A, dwelling 164, family 169, John Hoffman; Ancestry.com (accessed 19 Feb 2017); FHL microfilm 1241304, NARA microfilm T623, roll 1304.