Jefferson m
English: transferred use of the surname, originally meaning ‘son of JEFFREY (SEE Jeffrey)’, and now occasionally selected by fathers themselves named JEFFREY (SEE Jeffrey) or GEOFFREY (SEE Geoffrey). It has sometimes been used in honour of the American president Thomas Jefferson (1743–1826; president 1801–9), who was principally responsible for the text of the Declaration of Independence, and who is admired as a scientist, architect, and thinker as well as a statesman.
First names dictionary. 2012.