This is the tombstone of Catharina Dietrich, located in row 4 of Zion Lutheran Cemetery, Schumm, Van Wert County, Ohio. The marker is inscribed:
Hier ruhet in Gott
Adam u. Maria C.
21 Marz 1859
Here rests in God Catharina B, little daughter of Adam and Maria C. Dietrich, died 21 March 1859.
Unfortunately, I cannot decipher the rest of the inscription, but Zion Schumm’s records give some information.
Twin daughters were born to Adam and Maria (Germann) Dietrich on the morning of 21 March 1859. Maria Magdalena Margaretha survived but her twin sister Catharina died later in the evening. Catharina’s health must have been in question when she was born because the records indicate that she was quickly baptized by a church elder.
The surviving twin was baptized a couple days later.
The twin girls were the second and third children born to Adam and Maria Dietrich. Their first child Jacob died in 1857, the same year he was born, so the death of another infant would have been devastating.
The parents were both born in Germany and they married in Van Wert County on 21 November 1854.  Her father Johann “Adam” Dietrich was born 27 January 1828 and died 10 February 1912. Her mother Maria Elisabeth (Germann) was born 20 February 1833 and died 28 November 1888. Both are buried in Zion Schumm’s cemetery.
Adam and Maria (Germann) Dietrich, had the following children:
Jacob Dietrich (1857-1857)
Maria Magdalena “Lena” Margaretha (1859-1940), married Adam Sauer
Catharina (1859-1859), born and died on the same day, twin to Maria Magdalena Margaretha,
Johann Adam (1860-1903)
Georg Ernst (1864-1905), married Clara Schumm
Anna Maria Sophia (1866-1945), did not marry
Jacob “Heinrich” (1869-1935), married Maria Schumm
Hannah “Emma” Magdalena (1874-1956), married Johann “Ferdinand” Schinnerer
 “Ohio Marriages, 1800-1958,” database, FamilySearch.org, Adam Detrick & Mary Elizabeth Germann, 21 Nov 1854, Van Wert, Ohio.