This is a biography of Dorothy, sister to William Wordsworth and shows how Dorothy may have contributed her own ideas to William's poetry. Her detailed observations of their natural surroundings can be seen in her journals. Having lost their parents at an early age the two bonded together and stayed together for most of their lives, even after William's marriage to Mary. I wanted to point out their closeness. The story is told from Miss Wordsworth's old age when her health was deteriorating both mentally and physically. The title I have chosen 'Wordsworth's Exquisite Sister' is a quote made by their close friend, Samuel Taylor Coleridge.