Complex sentence: Ralph Denham, a lawyer who occasionally writes articles for a journal edited by Trevor Hilbery, Katharine's father, makes his first appearance in the novel at the Hilberys' tea party.
Split into simpler sentences: Ralph Denham, a lawyer who occasionally writes articles for a journal edited by Trevor Hilbery, Katharine's father. He makes his first appearance in the novel at the Hilberys' tea party.