HENNING Township, organized July 17, 1878, was at first called East Battle Lake, which was changed August 1, 1884, to the present name, borne also by villages in Illinois and Tennessee. The city of Henning, incorporated September 24, 1887, had several years earlier received this name in honor of John O. Henning, of Hudson, Wis., who during many years was a druggist there and died April 15, 1897. The post office was established in 1881; it had a station of the Northern Pacific and Soo Line railroads.
Cache is a small container hidded in some brush on a bike path in a city park.