Adequate performance status: children < 10-Lansky score >= 30; children >= 10-Karnofsky >= 30 (except for posterior fossa syndrome) Lansky performance status >= 50 Karnofsky or Lansky performance status ? 60%. Lansky/Karnofsky performance status >= 60% Performance status: Karnofsky/Lansky score > 50%. Performance status >= 50% (Lansky for =<12ys; Karnofsky for >12ys) Karnofsky or Lansky performance status >= 70% AUTOLOGOUS APHERESIS: Karnofsky or Lansky (age-dependent) performance score >= 50 MANUFACTURING SJCAR19: Karnofsky or Lansky (age-dependent) performance score >= 50 TREATMENT WITH SJCAR19: Karnofsky or Lansky (age-dependent) performance score >= 50 Karnofsky or Lansky performance status of >= 70 Karnofsky or Lansky (subjects <16 years) performance status ?60 Have a Karnofsky (adult) or Lansky (for =< 16 years) performance status >= 60% Performance status: Lansky or Karnofsky score ? 60% and minimum life expectancy of at least 4 weeks Karnofsky or Lansky performance status >= 70% Karnofsky or Lansky (age-dependent) performance score >= 50 Lansky/Karnofsky performance status score of 50-100 Lansky or Karnofsky ?50 Performance status defined by Karnofsky or Lansky >= 30 (except for patients with posterior fossa syndrome); other requirements of performance evaluation are the same as above Performance status defined by Karnofsky or Lansky >= 30 (except for patients with posterior fossa syndrome); other requirements of performance evaluation are the same as listed above Karnofsky or Lansky performance status >= 80 Karnofsky/Lansky performance status >= 60% Karnofsky/Lansky performance status >= 60% (Arm B) Zubrod performance status 0-1 or Lansky/Karnofsky performance status (PS) equal or greater to 80% Karnofsky or Lansky performance status of >= 50% Karnofsky or Lansky (age-dependent) performance score >= 50 Good performance status (Karnofsky/Lansky 70-100) Karnofsky/Lansky performance status < 40. Patients must have a Karnofsky (adult) or Lansky (pediatric) performance status >= 70% Karnofsky performance status (KPS) or Lansky score >= 20 Karnofsky performance status (KPS) or Lansky score > 50 Lansky/Karnofsky scores >= 60 Patients must have a Karnofsky (adult) or Lansky (pediatric) performance status >= 70% Karnofsky performance status >= 70% or Lansky >= 50% Karnofsky performance status > 70% or Lansky > 50% Karnofsky performance status (KPS) or Lansky score >= 60 EXCLUSION FOR COLLECTION OF T CELLS/PBMCS: Karnofsky/Lansky performance status < 60 EXCLUSION FOR TREATMENT: Karnofsky/Lansky performance status < 60 Karnofsky or Lansky ? 50 Performance status: Karnofsky or Lansky score ? 60% (Appendix A) Karnofsky/Lansky performance status >= 60% The patient has a Lansky/ Karnofsky performance status score of ? 70% Patients must have a Karnofsky (adult) or Lansky (pediatric) performance status >= 70% Lansky or Karnofsky performance status >= 70% Lansky/Karnofsky performance status score of 40-100 Karnofsky or Lansky performance status >= 60% ECOG performance status (PS) 0-1.Pediatric patients with Lansky or Karnofsky Performance Status Scale ? of 50%. Adequate performance status as defined by Lansky Score >= 30 (except for Posterior Fossa Syndrome) Quality of life must be 3 by Lansky and 50% by Karnofsky Patient has a minimum Karnofsky/Lansky Performance Level of at least 30 at the time of study entry. Karnofsky Performance Status (KPS) or Lansky Score ? 50 Karnofsky or Lansky (age-dependent) performance score >= 50 Performance score of >=50% according to the Karnofsky/Lansky performance status scale. Karnofsky or Lansky (age-dependent) performance score >= 50 Zubrod performance status < 2 or Lansky/Karnofsky performance status (PS) equal or greater to 70% Patients must have a Karnofsky (adult) or Lansky (pediatric) performance status >= 70% Lansky or Karnofsky performance >= 40% Lansky performance status or Karnofsky performance status of >= 50 percent Performance status: Karnofsky/Lansky score > 60%.