Central Pacific Railroad - Theodore Judah's Chief Engineer's Report,
- Full text of this report published in 1863.
- http://www.cprr.org/Museum/Judah_Report_1863.html

Theodore Judah - A Practical Plan for Building the Pacific Railroad
- Full text of Judah's plan published in 1857.
- http://www.sfmuseum.net/hist4/practical.html

Theodore Judah (1826-1863)
- Brief biography and portrait.
- http://www.pbs.org/wgbh/amex/tcrr/peopleevents/p_judah.html

Theodore Dehone Judah - Railroad Pioneer
- Illustrated full text publication written by John D. Galloway and published in 1941.
- http://cprr.org/Museum/Galloway_Judah_ASCE/index.html

In Memoriam, Theodore D. Judah
- Photographs and documents from the central pacific railroad photographic history museum.
- http://cprr.org/Museum/Ephemera/Judah%20Memoriam%20BCC.html