Available HLA-matched or better but not fully HLA-matched (/ or / antigens) related donor (aged to years) with donor/recipient match based on a minimum of intermediate resolution deoxyribonucleic acid (DNA) based class I typing of the A and B locus who is cytomegalovirus (CMV) seropositive DONOR: Haploidentical by human leukocyte agent (HLA)-typing\r\n* Haploidentical family members, between the ages of and years, identified as an eligible donor by HLA-typing.; a biological parent will generally be used as the donor Available human leukocyte antigen (HLA)-matched or better but not fully HLA-matched (/ or / antigens) related donor (aged to years) with donor/recipient match based on a minimum of intermediate resolution deoxyribonucleic acid (DNA) based class I typing of the A and B locus who is CMV seropositive Human leukocyte antigen (HLA)-haploidentical related donor (aged to years) with donor/recipient match based on a minimum of intermediate resolution deoxyribonucleic acid (DNA) based class I typing of the A and B locus (at least / class I allele) HLA-haploidentical related donor (aged to years) with donor/recipient match based on a minimum of intermediate resolution DNA based class I typing of the A and B locus (at least / class I allele) Available HLA-haploidentical or mismatched related donor (aged to years) with donor/recipient match based on a minimum of intermediate resolution deoxyribonucleic acid (DNA) based class I typing of the A and B locus (at least / class I allele) DONOR: HLA-haploidentical or mismatched related donor/recipient match based on a minimum of intermediate resolution DNA based Class I typing of the A and B locus (at least / class I allele) Available human leukocyte antigen (HLA)-haploidentical donor that meets the following criteria:\r\n* Related donor (sibling, offspring, or offspring of sibling)\r\n* At least years of age\r\n* HLA-haploidentical donor/recipient match by at least class I serologic typing at the A&B locus\r\n* In general good health, and medically able to tolerate leukapheresis required for harvesting the NK cells for this study\r\n* Negative for hepatitis, human T-cell lymphotropic virus (HTLV), and human immunodeficiency virus (HIV) on donor viral screen\r\n* Not pregnant\r\n* Voluntary written consent to participate in this study Available related human leukocyte antigen (HLA)-haploidentical NK cell donor by at least class I serologic typing at the A&B locus DONOR: HLA-haploidentical donor/recipient match by at least class I serologic typing at the A&B locus Available related human leukocyte antigen (HLA)-haploidentical donor (aged to years) with donor/recipient match based on a minimum of intermediate resolution DNA based class I typing of the A&B locus DONOR: Donor/recipient match based on a minimum of intermediate resolution DNA based class I typing of the A&B locus DONOR: HLA-haploidentical donor/recipient match by at least class I serologic typing at the HLA-A and B loci Available related human leukocyte antigen (HLA)-haploidentical donor (aged - years) by at least class I serologic typing at the A & B locus DONOR: HLA-haploidentical donor/recipient match by at least class I serologic typing at the A & B locus Available related human leukocyte antigen (HLA)-haploidentical donor by at least class I serologic typing at the A&B locus DONOR: HLA-haploidentical donor/recipient match by at least class I serologic typing at the A&B locus Available related human leukocyte antigen (HLA) haploidentical NK cell donor by at least Class I serologic typing at the A and B locus (age - years) Available human leukocyte antigen (HLA)-haploidentical donor that meets the following criteria:\r\n* Immediate family member (sibling, offspring, or parent)\r\n* HLA-haploidentical donor/recipient match by class I serologic typing at the A&B locus\r\n* In the treating physicians opinion, is in general good health, and medically able to tolerate leukapheresis required for harvesting hematopoietic stem cells (HSC)\r\n* No active hepatitis (B, C), human T-cell lymphotropic virus (HTLV), and human immunodeficiency virus (HIV) infections\r\n* Not pregnant