This paper describes a proposed method for using historical documentation to identify unknown wastes resulting from retrieving suspect transuranic (TRU) waste. Identification is accomplished by a historical review of radionuclides identified by radioassay, along with the project controls used to ensure an accurate segregation of TRU from low-level waste (LLW). This paper presents an historical perspective on the identification of radionuclides at the Hanford Site from various waste generators of suspect TRU waste with an emphasis on the Data Quality Objectives (DQO's) and project controls used to ensure the waste is properly classified as TRU or LLW.