This is the tombstone of Michael Allmandinger, located in row 1 of Zion Lutheran Cemetery, Chattanooga, Mercer County, Ohio. The marker is inscribed:
Den 9 Dec 1883
25 Jahr, 8 Tag
Translation: Michael Allmandinger, died 9 Dec 1883, aged 25 years, 8 days.
Michael was the son of Lewis and Rosina (Schneider) Allmandinger. He was likely born in Butler County, Ohio. The Lewis Allmandinger family did not move to Mercer County until sometime between 1870 and 1880.
The first Allmandinger entries appear in Zion’s communion records in April 1878, when Louis Sr, Rosina, Louis Jr, Johann, and Michael received Holy Communion. The first Allmandinger confirmations at Zion Chatt were in 1884, when Michael’s brothers William and Friedrich were confirmed on the same day.
Michael’s death is not recorded in Zion Chatt’s records but it is recorded in the Mercer County, Ohio, Probate Death records. The probate death record indicates he died 20 December 1883 in Blackcreek Township by hanging himself. He was single, aged 24 years, 9 months, and 4 days, and was born in Ohio. 
Although the tombstone is very difficult to read, his age as carved on his tombstone disagrees with the county death record. According to his tombstone Michael was born 1 December 1858. According to his probate death record he was born 5 March 1859.
The first census Michael was enumerated in indicates he was born about 1859 in Ohio. 
The 1880 census indicates he was born about 1858. In 1880 he worked on the family farm in Blackcreek Township. 
 “Ohio, County Death Records, 1840-2001,” database with images, FamilySearch (https://familysearch.org : accessed 13 Sep 2015), Mike Allmandinger, 20 Dec 1883: citing Deaths, Black Creek Township, Mercer, Ohio, Vol.1-2, p.194, from FHL microfilm 914954.
 1870 U.S. Census, Wayne, Butler, Ohio, p.491B, dwelling 78, family 75, Lewis Allmandinger; digital image by subscription, Ancestry.com (www.ancestry.com : accessed 25 Sep 2015); from FHL microfilm 552676, from NARA microfilm M593, roll 1177.
 1880 U.S. Census, Black Creek, Mercer, Ohio, ED 179, p.323A, line 38, Lewis Allmanding; digital image by subscription, Ancestry.com (www.ancestry.com : accessed 25 Sep 2015); from NARA microfilm T9, roll 1048.