Visit Website Get Directions Historical Society of Garden County Visit Website Get Directions West 1st & Avenue E Oshkosh, NE 69154 Phone: (308) 778-6123 About Early 1900s school and opera house. Period rooms, tools, clothing, American Indian artifacts, military display and Miles Maryott bird collection. Open Memorial Day weekend-Labor Day, Mon-Sat, 9am-3pm. Free.