In the category "Space" we currently track items of 447 persons. The most popular ones, by number of traded items, are:

Neil ArmstrongGuion BlufordMike Melvill
James LovellAlan ShepardAlan Bean
Chuck YeagerGene KranzJames Irwin
Charlie DukeFrank BormanStuart Roosa
Dick RutanB.J. Armstrong 

You can find all people that we're currently tracking items for in the alphabetical index:
A    B    D    I    K    L    M    R    S    Y