The building of the current cathedral was instigated by Archbishop John Ireland in 1904. At Ireland's direction, the archdiocese commissioned well-known French Beaux-Arts architect Emmanuel Louis Masqueray, who was also the chief architect of the 1904 World's Fair in St. Louis, Missouri, and construction began in 1906. Masqueray's open design allows visitors unobstructed views of the altar and pulpit. Masqueray died in 1917, having completed only a few designs for the interior, which has been filled by other designers in the subsequent decades.