John Carter Cash
He also has two half-sisters from his mother's previous marriages: Carlene Carter ( from June's marriage to singer Carl Smith ) , and the late Rosie Nix Adams ( from June's marriage to Edwin "Rip" Nix ) . 
<triplet> Carlene Carter <subj> Rosie Nix Adams <obj> sibling <triplet> Carl Smith <subj> Carlene Carter <obj> child <triplet> Rosie Nix Adams <subj> Carlene Carter <obj> sibling