Walter Cheesman came to Denver, from Chicago in 1861. He collaborated with his brother in the drug store business, where he sold water. Soon afterwards, he expanded his interest into banking, railroads and water. His enthusiasm for his businesses helped him to bring the railroad into Denver, develop the city’s real estate industry and improve Denver’s water resources. Cheesman became the president of the Denver Union Water Company in 1894. The company was instrumental in planning and constructing the first of the major segment of Denver’s water system.