Final answer:
Hareton Earnshaw from 'Wuthering Heights' is the character who, despite being raised uneducated by Heathcliff, improves himself and finds love and happiness.
Step-by-step explanation:
The character raised as an uneducated and illiterate farm worker by a man who hates his father, and eventually works to improve himself and find happiness is Hareton Earnshaw from Emily Brontë's Wuthering Heights.
Hareton Earnshaw is a character that undergoes significant development in Emily Brontë's classic novel Wuthering Heights. Initially raised without education by Heathcliff, who holds a deep-seated resentment towards Hareton's father, Hareton is brutish and unsophisticated. Despite these circumstances, the underlying nobility and virtues of Hareton remain untarnished.
Over the course of the narrative, he embarks on a transformative journey spurred by his interactions with Catherine Linton, who inspires him to better himself. His transformation is tangible as he learns to read and becomes more civilized, demonstrating the capacity for growth regardless of one's upbringing.
Towards the end of the novel, his innate kindness and perseverance lead him to a life filled with love and contentment, as he develops a true bond with Catherine.