Tigges & Jacobsons "
Milwaukee Road Narrow Gauge" book, all four ex-Milwaukee Road narrow gauge steam locomotives were cut up for scrap in Bellevue, Iowa and shipped out when the last owner of the line scrapped the line. That information came from a Zwingle, Iowa farmer, the late Ray Kemmerer, who bought the whistle for his steam traction engine. Supposedly the whistle is still on his steam tractor which was donated to the Old Threasher's museum in Mt. Pleasant, Iowa.
At least that's the story anyway.