I Am Looking for Information and Photos of Carlos N Boynton of St Paul

I am looking for information and photos of Carlos N. Boynton of St. Paul, MN. He was a millionaire in the early 1900s. He owned huge plots of land with his Boynton Land Company. He supposedly owned land in Montana. I'd like to know more about this. Also owned land in ND. He owned a large ranch east of the town of Truman, MN, called the Boynton Ranch. He bred harness horse racers, raised sheep and had over a 1,000 acres of farm land. His ranch had a huge barn and a 1 mile race track.