Waltz, Robert B.; Engle, David G. (2012). "Nine Hundred Miles". Folklore The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Retrieved 2014-09-16.
Waltz, Robert B.; Engle, David G. (2012). "Asleep at the Switch". The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Retrieved 2014-09-16.
Waltz, Robert B.; Engle, David G. (2012). "The Cannonball". The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Retrieved 2014-09-16.
Waltz, Robert B.; Engle, David G. (2012). "The Chatsworth Wreck". The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Retrieved 2013-02-19.
Waltz, Robert B.; Engle, David G. (2012). "Clear the Track". The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Retrieved 2014-09-16.
Waltz, Robert B.; Engle, David G. (2012). "The Dummy Line". Folklore The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Retrieved 2013-02-19.
Waltz, Robert B.; Engle, David G. (2012). "Going for a Pardon". Folklore The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Retrieved 2014-09-17.
Waltz, Robert B.; Engle, David G. (2012). "Hobo's Lullabye". Folklore The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Retrieved 2013-02-21.
Waltz, Robert B.; Engle, David G. (2012). "Alabama Bound". Folklore The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Retrieved 2013-02-03.
Waltz, Robert B.; Engle, David G. (2012). "K.C. Moan". The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Retrieved 2013-02-21.
Waltz, Robert B.; Engle, David G. (2021). "New River Train". The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Retrieved December 7, 2021.
Waltz, Robert B.; Engle, David G. (2012). "Railroad Bill". The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Retrieved 2013-02-21.
Waltz, Robert B.; Engle, David G. (2021). "Railroad BLues". The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Archived from the original on November 23, 2021. Retrieved December 15, 2021.
Waltz, Robert B.; Engle, David G. (2012). "The Railroad Boomer". Folklore The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Retrieved 2013-02-20.
Waltz, Robert B.; Engle, David G. (2012). "Railroad Corral". The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Retrieved 2013-11-11.
Waltz, Robert B.; Engle, David G. (2021). "Rock Island Line". The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Retrieved December 16, 2021.
Waltz, Robert B.; Engle, David G. (2021). "I Want to Go to Morrow". The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Retrieved December 18, 2021.
Waltz, Robert B.; Engle, David G. (2012). "Wreck of the 1262". The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Retrieved 2013-02-21.
Waltz, Robert B.; Engle, David G. (2021). "The Wreck of Number 9". The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Retrieved December 16, 2021.
Pokorny, Sydney (May 1986). "Liner Notes: Ferron's Shadow's on a Dime". Womanspeak. Vol. 8, no. 2. p. 16. Retrieved December 14, 2021 – via Vassar Newspaper & Magazine Archive.
Waltz, Robert B.; Engle, David G. (2021). "Railroad BLues". The Traditional Ballad Index: An Annotated Bibliography of the Folk Songs of the English-Speaking World. California State University, Fresno. Archived from the original on November 23, 2021. Retrieved December 15, 2021.