Weller, O.E.; Parran, Thomas; Miller, W.B.; Perry, John M.; Ramsay, Andrew; Smith, J. Frank (May 1916). Annual Reports of the State Roads Commission of Maryland (1912–1915 ed.). Baltimore: Maryland State Roads Commission. p. 124. Retrieved 2013-08-13.
Uhl, G. Clinton; Bruce, Howard; Shaw, John K. (October 1, 1930). Report of the State Roads Commission of Maryland (1927–1930 ed.). Baltimore: Maryland State Roads Commission. p. 220. Retrieved 2013-08-13.
Byron, William D.; Lacy, Robert (December 28, 1934). Report of the State Roads Commission of Maryland (1931–1934 ed.). Baltimore: Maryland State Roads Commission. p. 345. Retrieved 2013-08-13.
McCain, Russell H.; Bennett, Edgar T.; Kelly, Bramwell (November 12, 1954). Report of the State Roads Commission of Maryland (1953–1954 ed.). Baltimore: Maryland State Roads Commission. pp. 160, 162, 165. Retrieved 2013-08-13.