It remains one of the largest houses in town. An American Foursquare design built for Colburn T. Winslow, its architect and builder are unknown. Colburn Winslow and his father David, with his brothers Orin and Lloyd were responsible for building and operating the largest lumber mill in northeastern Washington.
The coming of the Spokane Falls and Northern Railroad to the area in the 1890s created an industrial boom for the area. It enabled large scale operations such as limber mills to be profitably operated. It was shortly after the railroad's arrival that the Colburns arrived in Colville in 1900. They immediately bought large timber leases and spent close to $200,000 in getting a large mill up and running. It was incorporated in 1900 as the Winslow Lumber Manufacturing Company.
In 1905 Colburn and his wife purchased the land this house rests on, and the house was finished in 1909. Having passed through several hands in the intervening years, it has been restored and is still in very good condition.
A City, State and National Historic Building, the Winslow house was listed in the National Resister of Historic Places on April 26, 1990.