Hareton Earnshow is the son of Hindley, who, after the death of his father, was brought up by Heathcliffe. He is devoted and grateful. Like Hitcliff in his youth, he is uneducated and rough. He loved the widowed Catherine Lynton. Earnshaw’s son, Hareton, is penniless, completely depended on Heathcliff for everything. Hareton lives and works at Wuthering Heights, where his father ignores him, and Heathcliff tolerates him; he is shy, rough, illiterate, hard-working, and neglected. By birth, he should be a gentleman, but his guardians purposely neglect his education. Underneath his gruffness is a smart, kind, and sensitive soul.
Hareton Earnshaw in the Essays