Byron, William D.; Lacy, Robert (December 28, 1934). Report of the State Roads Commission of Maryland (1931–1934 ed.). Baltimore: Maryland State Roads Commission. pp. 326–327. Retrieved 2011-04-30.
Reindollar, Robert M.; George, Joseph M.; McCain, Russell H. (February 15, 1949). Report of the State Roads Commission of Maryland (1947–1948 ed.). Baltimore: Maryland State Roads Commission. p. 114. Retrieved 2011-04-30.