There were a lot of members, you mean who were the ones who killed the archduke? In general, there were about 2500. The murderers of the archduke were as following
Gavrilo Princip
Mehmed Mehbedbasic
Vaso Cubrilovic
Nedelco Cabrinovic
Danio Ilic
Cvjetco Popovic
Trifun Grabez
Gavrilo Princip
Mehmed Mehbedbasic
Vaso Cubrilovic
Nedelco Cabrinovic
Danio Ilic
Cvjetco Popovic
Trifun Grabez