 While Oppenheimer seemed the logical person to direct the new laboratory, which became known as Project Y, he had little administrative experience; Bush, Conant, Lawrence and Harold Urey all expressed reservations about this.Moreover, unlike his other project leaders—Lawrence at the Berkeley Radiation Laboratory, Compton at the Metallurgical Project in Chicago, and Urey at the SAM Laboratories in New York—Oppenheimer did not have a Nobel Prize, raising concerns that he might not have the prestige to deal with distinguished scientists.There were also security concerns; many of Oppenheimer's closest associates were active members of the Communist Party, including his wife Kitty, girlfriend Jean Tatlock, brother Frank, and Frank's wife Jackie.