He decided to start up an investment banking firm, which led the Sweet family to become wealthy, and even let William to retire in 1922. He donated much of his money to charities, including the Denver YMCA.
His decision to start an investment banking firm had a profound impact on the Sweet family, leading to their financial success and allowing William to retire in 1922. Through his philanthropic efforts, he demonstrated his commitment to giving back to the community by supporting organizations like the Denver YMCA.