What was the name of Tolkien’s eldest son, who edited many of his father’s posthumous works?

Tolkien’s eldest son who edited many of his father’s posthumous works was Christopher Tolkien. He was born in 1924 and became the principal editor and organizer of J.R.R. Tolkien’s literary papers after his father’s death.

Christopher Tolkien prepared The Silmarillion for publication in 1977, working from writings that covered different periods and sometimes contradicted one another. He later edited collections such as Unfinished Tales and the twelve-volume History of Middle-earth.

His editorial work made a substantial part of Tolkien’s mythology available to readers, but the books also show the limits of reconstruction. Christopher often explained textual differences, abandoned versions, and editorial decisions in introductions and notes. He did not simply discover completed novels waiting to be printed; he shaped coherent editions from a complex archive of drafts, typescripts, annotations, and manuscripts.