Joseph Ruemmele is buried at Sandusky's Oakland Cemetery. He died on November 5, 1871. He was only 28 years and 9 months of age at the time of his death.
A search of the Civil War Soldiers and Sailors database provides the military unit in which Joseph Ruemmele served. He was a musician in Company H of the 72nd Ohio Volunteer Infantry during the Civil War.
The IGI portion of FamilySearch indicates that Joseph Ruemmele was the son of Charles F. and Mary A. Ruemmele.
While we do not know the exact connection, if any, another Mr. Ruemmele, August, was active in publishing a German newspaper in Sandusky in the 1850's. See the Sandusky History website to view an image of August Ruemmele.