Richard Sallet reports that by 1920, there were 16,000 Evangelical and 3,500 Catholic Volga German immigrants of the first and second generation settled in Colorado. In 1970, descendants of the Germans from Russia were the second largest ethnic group in Colorado, exceeded only by Spanish-speaking people.
PRIMARY SETTLEMENT AREAS
Sallet, Richard. Russian-German Settlement in the United States (Fargo, ND: North Dakota Institute for Regional Studies, 1974): 112.
Tripp, Harley. History of the RMC (Rocky Mountain Conference).