Whitman, Ezra B.; Webb, P. Watson; Thomas, W. Frank (March 15, 1943). Report of the State Roads Commission of Maryland (1941–1942 ed.). Baltimore: Maryland State Roads Commission. pp. iii, 95.
Reindollar, Robert M.; Webb, P. Watson; McCain, Russell H. (February 1, 1947). Report of the State Roads Commission of Maryland (1945–1946 ed.). Baltimore: Maryland State Roads Commission. p. 102.
Reindollar, Robert M.; George, Joseph M.; McCain, Russell H. (December 20, 1950). Report of the State Roads Commission of Maryland (1949–1950 ed.). Baltimore: Maryland State Roads Commission. p. 153.
Bonnell, Robert O.; Bennett, Edgar T.; McMullen, John J. (December 15, 1958). Report of the State Roads Commission of Maryland (1957–1958 ed.). Baltimore: Maryland State Roads Commission. p. 53.