Jefferson

* Characters:
** Thomas Jefferson (robot), an inactive Protectron programmed to believe it is Thomas Jefferson in Fallout 3.
** Count Abraham Jefferson III, someone buried in Goodsprings Cemetery in Fallout: New Vegas.
** Blind Diode Jefferson, an automated personality at Big MT in the Fallout: New Vegas add-on Old Work Blues.
** E. Jefferson, a resident of Vault 76, mentioned in Fallout 76.
* Locations: 
** Jefferson Memorial, a monument in the Capital Wasteland which houses the water purifier for Project Purity in Fallout 3. 
*** Jefferson Memorial terminal entries, entries from the terminals that can be found in the Jefferson Memorial in Fallout 3.
** Jefferson, the remains of Jefferson City where a cure for super mutant sterility is being researched in Fallout Tactics.
*** Jefferson (mission), the ninth or tenth mission in Fallout Tactics.
* Game engine:
** Jefferson Engine, an isometric 3D game engine which was to be used for the development of Van Buren.
* Real-life person:
** Thomas Jefferson, the third president of the United States of America, mentioned in Fallout 3.
ru:Джефферсон