Rowell House - 1899 Blackwell, OK Historic Homes Blackwell Armory The Blackwell Armory with it Art Deco architecture was built in 1925, and is listed on the National Register of Historic Places Blackwell, OK Historic Buildings Blackwell Library The library features Roman/ Blackwell, OK Historic Buildings Top of Oklahoma Museum Blackwell, OK Museums Blackwell City Hall Built in 1909 Blackwell, OK Historic Buildings