In the category "Science" we currently track items of 38 persons. The most popular ones, by number of traded items, are:

Jane GoodallEd CharlesJ.T. Thomas
James WatsonDenton CooleySteve Jobs
Steve WozniakMichael DeBakeyCarl Sagan
Clyde TombaughHarold AgnewCharles Townes
Christiaan BarnardRoger KornbergJames Van
Eric KandelNorman BorlaugAl Albert
Gerhard ErtlHenry Ford 

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