What was the name of J.R.R. Tolkien’s eldest child?

J.R.R. Tolkien’s eldest child was John Tolkien.

John Francis Reuel Tolkien was born in 1917, the first of Tolkien’s four children with Edith Tolkien. He became a Roman Catholic priest and later served as a parish priest in England. His career differed from that of his younger brother Christopher, who became Tolkien’s literary executor and editor.

The children are often confused because each had an important connection to Tolkien’s life and legacy. Christopher Tolkien edited and published many posthumous works, while Michael Tolkien wrote about his father and served in the Royal Air Force. Priscilla Tolkien was the youngest child, and Tolkien’s brother Hilary was not one of his children.