Richardson, Robert W., D&RGW, Alamosa, Colo. R.G. std. 561, 4-unit diesel, & 1514 (4-8-2) after passenger, from car roof as leaving east yard. (1949 September 20). Denver Public Library Digital Collections, accessed 18/07/2025, https://digital.denverlibrary.org/nodes/view/1125063