August 1, 1840, near Miami, Missouri.
November 30, 1904, at his home in Dayton, Virginia.
Dayton Cemetery, Dayton, Virginia.
Kieffer was the son of John Kieffer and Mary Funk (daughter of Virginia musician Joseph Funk), and husband of Elizabeth Josephine Hamman.
In the American civil war, Kieffer served in the 10th Virginia Volunteer Infantry.
He was one of the founders of the Kieffer-Ruebush Gospel music publisher in Dayton, Virginia, and edited the Musical Million magazine. His works include: