Dr Johannes Deinzer was born in 1842. As the assistant to J. K. W. Loehe, he was an influential figure in the missionary movement, sending a large number of missionaries to the Iowa Synod during the second half of the nineteenth century. Deinzer taught at the Institute of the Neuendettelsau mission society in Germany and also edited Wilhelm Löhe's Leben and J. K. W. Löhe, Agende, 3d ed., 1884.
Reference: See http://chi.lcms.org/history/tih0902.htm
