This is Frederick Weyerhaeuser, a rich buisness man, immigrant from Germany, and super eager to harvest into Minnesota´s lumber industry. He came to the U.S in 1852, at the age of 18.
When the lumberjacks first that arrived in Saint Paul, they crossed the Mississippi on the old bridge and walked up the "river road." where in the spring they floated logs down the river.
Frederick realized that the best way to make sure the logs kept coming was to own the forests that produced them so in 1890, him and his partners bought more than 200,000 acres of timberland
Rivers served as transportation highways for millions of logs. When they reached the sawmills, the logs were collected in a boom- a section of the river that was blocked off to get the logs.
Sometimes there were log jams like this one on the St.Croix river at Taylors falls in 1886. It took 200 men and 6 weeks using dynamite to break the logs loose.
People now wanted to conserve trees so if you wanted to keep working as a lumberjack you had to follow the companies west to new forests. Once it was clear Minnesota was running out of pine, Frederick moved him business to Washington.