 In 1901 the line incorporated as the El Paso and Southwestern Railroad and added the El Paso and Northeastern Railroad in 1905, establishing a 750-mile rail link between the Rock Island at Tucumcari New Mexico and Southern Pacific Lines at Tucson Arizona, via El Paso and Douglas.With the passing of the senior members of the Phelps Dodge partnership, the firm was dissolved and replaced in 1908 with Phelps Dodge & Company, a holding company of all the subsidiary properties.Douglas became the first president.