Central Pacific Railroad - Theodore Judah's Chief Engineer's Report,: Full text of this report published in 1863.
In Memoriam, Theodore D. Judah: Photographs and documents from the central pacific railroad photographic history museum.
Theodore Dehone Judah - Railroad Pioneer: Illustrated full text publication written by John D. Galloway and published in 1941.
Theodore Judah (1826-1863): Brief biography and portrait.
Theodore Judah - A Practical Plan for Building the Pacific Railroad: Full text of Judah's plan published in 1857.