From the 1885 History of Steuben County, IN page 717:

Nathaniel Shaffstall, son of Christian Shaffstall, was born on the old homestead in Salem Township, Steuben County, in 1847.  He remained at home until his enlistment in the War of the Rebellion, in the Spring of 1865.  He serves as Fife-Major of the 155th Indiana Infantry till the close of the war.  After his return home he engaged in agricultural pursuits and now has a good farm on Section 10, Jackson Township.  He is the inventor of the Champion sulky plow attachment, which possesses what is known as the wonderful vibrating bail, and an improved mechanism for grinding the plow.  It has proved a very important invention and is meeting with great favor wherever introduced.  The patent was issued on the improvement, February 28, 1882.  Mr. Shaffstall married Mary C., daughter of C.C. Bodley, one of the early settlers of Steuben County.  They have three children -- Hattie E., Chauncey N. and Leruah B.