The S.S.P. Mills and Son Building was a historic commercial building at the northwest corner of Texarkana Avenue and Main Street in Wilton, Arkansas, between the railroad tracks and United States Route 71. It was a single-story panel brick building, built by a local landowner and merchant for his commercial activities. It was designed by Witt, Seibert & Company of Texarkana, and built in 1912. It was one of the few commercial buildings in Wilton to survive from the growth period after the arrival of the railroad in the city.[2]