In the category "Science" we currently track items of 36 persons. The most popular ones, by number of traded items, are:

Jane GoodallEd CharlesJ.T. Thomas
James WatsonBill GatesDenton Cooley
Linus PaulingSteve JobsMichael DeBakey
Carl SaganClyde TombaughHarold Agnew
Charles TownesChristiaan BarnardRoger Kornberg
James VanEric KandelNorman Borlaug
Al AlbertGerhard Ertl 

You can find all people that we're currently tracking items for in the alphabetical index:
A    B    C    D    E    G    J    K    P    S    T    V    W