Birth: Sep. 17, 1840, York County, Pennsylvania.
Death: May 23, 1913, Harrisburg, Dauphin County, Pennsylvania,
John Jacob Hess was the son of Jacob Hess and, in 1860, was a wheelwright presumably living in York Borough, York County.
He stood 5' 9" tall with light hair and gray eyes. A Civil War veteran, he was drafted in York November 9, 1862 (although that date leads to the possibility that he enlisted as a substitute), and mustered into federal service there November 11 as a sergeant with Co. D, 166th Pennsylvania Infantry (aka "Drafted Militia"). He was honorably discharged with his company July 28, 1863. He then enlisted in York January 26, 1864, and mustered at Harrisburg January 28 as a private with Co. B, 187th Pennsylvania Infantry. Promoted to corporal December 1, 1864, and honorably discharged with his company on August 3, 1865.
He married widow Julia Ossman, née Harvey, May 30, 1871, in York. They had no children, but Julia brought son William Ossman (c. 1862) into the relationship. By 1890, John and Julia were living in Harrisburg. Wife: Julia Hess (1836 - 1905).
Burial: East Harrisburg Cemetery, Harrisburg, Dauphin County, Pennsylvania.