Career
After 1900, he made a second fortune growing sugar beets. The community of Campion, Colorado is named after him. Campion is a somewhat obscure figure today, but was well known in his day.
Campion was partnered with industrialist Charles Boettcher in ventures including mining in Leadville, the formation of the Great Western Sugar Company and the co-founding of the Ideal Cement Company.
Campion was also an owner (with Boettcher) of the Leadville Light and Power Company and the Western Meat Packing Company, and once owned the Herald-Democrat newspaper. After moving his family to Denver, he was named president of the Denver Chamber of Commerce, and was influential in helping to build the Denver Municipal Auditorium in time for the 1908 Democratic Convention.
He also gave money, along with James J Brown, Dennis Sheedy and others, toward the purchase of land for the construction of the Cathedral of the Immaculate Conception in Denver, at Colfax Avenue. and Logan Saint The bell in the east tower is dedicated to his memory. Campion"s Capitol Hill mansion at 800 Logan Saint was one of the city"s showplaces, and sat north of what is now the Colorado Governor"s Mansion, which was the former home of Charles Boettcher"s son, Claude K. The Campion house was destroyed in 1963 and replaced with an apartment highrise.
Campion"s name is listed on the Donor"s Wall in Denver"s Civic Center Park at Colfax Avenue. and Broadway.
During the Leadville Colorado, Miners" Strike of 1896-1897, Campion hired labor spies to infiltrate the Cloud City Miners" Union, Local 33 of the Western Federation of Miners. Spy reports compiled by the Thiel Detective Agency and forwarded to John Campion are currently housed at the Colorado Historical Society.