1860 Spencer by the Union Army
1866 and 1873 Winchesters to Turkey
1876 Winchester to the King of Hawaii and RCMP
1895 Winchester to the Russian Army and U.S. Army trials (100 used in the Philippines, the remainder sent to Cuba)
1894 Winchester by the Signal Corps during WWI to ensure spruce harvest in the Northwest
1899 Savage by Montreal Home Guard (Want to say some U.S. National Guard units too but might have that confused with state police purchases)

That's all I can think of at the moment.