Gray reported to Nixon that he had secured Hoover's office and its contents. However, he had sealed only Hoover's personal inner office, where no files were stored, not the entire suite of offices. Since 1957, Hoover's "Official/Confidential" files, containing material too sensitive to include in the Bureau's central files, had been kept in the outer office, where Gandy sat. Gentry reported that Gray would not have known where to look in Gandy's office for the files, as her office was lined floor to ceiling with filing cabinets; moreover, without her index to the files, he would not have been able to locate incriminating material, for files were deliberately mislabeled, e.g., President Nixon's file was labeled "Obscene Matters".