My latest Bing Image search has yielded a new crop of former Monon Mikados at work on the Soo Line. The website is one devoted to Mikados built in 1912: https://sites.google.com/site/mikado282typesteamlocomotives/built-1912
Here we have Soo 1024, 1034 and 1036. There are no dates on the photos but the photo of the 1024 must have been fairly soon after sale to the Soo since the capped stack is still in place.
I've also attached an eBay photo of 1025. I believe this is the engine that the Soo offered to the city of Rhinelander Wisconsin, but changed their mind after the city balked at maintaining it. All after the Soo had prettied her up too, which is obvious in this photo of her. She's lost her main rod, but has a glossy, recently repainted boiler, and nicely whitelined valve gear, running boards, drivers and wheels. What a shame.