Railroads, Accidents Eden, Colorado, August 7, 1904, 96 killed. Florence, Colorado, March 16, 1906, 35 killed. Waco, Colorado September 5, 1926, 30 killed. Vroman, Colorado June 11, 1957, 12 killed. World Almanac, 1957, p.158 Mary McQueary (Mrs. Warren) was killed when Rock Island train strikes carriage on Rio Grande tracks near Cotton Mills, Denver. Times Dec. 1, 1892, p.5 Repub. Dec. 1, 1892, p.1 D. rio grande train #315 derailed on western slope of Marshall Pass; several passengers injured, Times July 23, 1901 p.1