From the record
“Sam Brown Memorial State Wayside is a historical park in Browns Valley, Minnesota, United States, established in 1929 to honor frontiersman Sam Brown (1845-1925). On April 19, 1866, Brown rode 55 miles (89 km) to warn other settlers of an impending attack by Native Americans, and when the threat proved false he rode back through a spring blizzard to intercept his dispatch to the U.S.”
Wikipedia article Sam Brown Memorial State Wayside, CC BY-SA 4.0.
One of 5 National Register listings published here for Traverse County · listed in 1986 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service
