Bolles, F.G. (January 14, 1893). "The Rock Creek Railway". The Electrical World. 22 (2): 23–26. Archived from the original on September 26, 2023. Retrieved September 26, 2023 – via HathiTrust.
"Erection of the Rock Creek Viaduct". The Engineering Record. 29: 37. December 16, 1893. Archived from the original on September 24, 2023. Retrieved September 24, 2023 – via HathiTrust.
Bolles, F.G. (January 14, 1893). "The Rock Creek Railway". The Electrical World. 22 (2): 23–26. Archived from the original on September 26, 2023. Retrieved September 26, 2023 – via HathiTrust.
"A Streetcar City". National Museum of American History. 2017-02-28. Archived from the original on 2023-09-26. Retrieved 2023-09-26.
"Erection of the Rock Creek Viaduct". The Engineering Record. 29: 37. December 16, 1893. Archived from the original on September 24, 2023. Retrieved September 24, 2023 – via HathiTrust.