Patient or parent/guardian capable of providing informed consent Patient or parent/guardian capable of providing informed consent Willing to and capable of providing written informed consent prior to any study related procedures Patients must be capable of understanding and providing a written informed consent Must be capable of providing informed consent Caregiver capable of providing post-HCT care Adult donors must be an HLA 4-8/8 match with the patient and must be capable of providing informed consent Capable of providing informed consent and complying with trial procedures. Capable of providing informed consent Capable of informed consent Capability of providing informed consent Patients must be capable of informed consent Capable of providing informed consent and complying with trial procedures. DONOR: Adult donors must be must be a HLA 3-5/6 related haploidentical match with the patient and must be capable of providing informed consent The subject must be capable of understanding the investigational nature, potential risks and benefits of the study and capable of providing valid informed consent. The subject must provide study specific informed consent prior to any protocol procedures that are not a part of standard care, including consent for assessment of HLA-A2 status, mandatory tissue submission for MAGE-A3 analysis and correlative studies. Patient or parent/guardian capable of providing informed consent Patients capable of providing written, informed consent Patient (or legal representative where appropriate) must be capable of providing written informed consent. Capable of providing informed consent and complying with trial procedures. Capable of providing informed consent and complying with trial procedures. Patients must be capable of providing informed consent and must be willing to provide written informed consent prior to the start of any study-specific procedures. Capable of providing informed consent Providing informed consent DCG: Is capable of providing informed consent Providing informed consent Capable of providing informed consent Participants must be capable of providing written informed consent for study participation Capable of informed consent Willing to and capable of providing written informed consent prior to any study related procedures Be capable of providing informed consent and demonstrate a willingness to comply with all the study procedures and visits The patient must be considered legally capable of providing his or her own consent for participation in this study