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
Steve JobsMichael DeBakeyCarl Sagan
Clyde TombaughHarold AgnewCharles Townes
Christiaan BarnardRoger KornbergJames Van
Eric KandelNorman BorlaugAl Albert
Gerhard 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    S    T    V    W