Collection consists of a minutes book (ca. 1898-1900), a stock register (ca. 1898-1904), and a stock certificate book (ca. 1898-1904) of the May Queen Leasing and Mining Company of Denver, Colorado. Incorporated in 1898, the company leased a number of holdings in Eagle County, Colorado. Among the first presidents of the company was Walter S. Cheesman, a prominent citizen of 19th century Denver.