I had never heard of Jean Ingelow before I saw this carte-de-visite, but her pose and expression charmed me. It was made by the studio of Elliott & Fry in London, where she lived. The daughter of an English banker father and a Scottish mother, she was the oldest of ten children.
Jean Ingelow (1820-1897) published several volumes of poetry, novels and children’s books. She enjoyed considerable success in her lifetime in both Great Britain and the United States. She was well-liked by the literary community, becoming close friends with Alfred Lord Tennyson and John Ruskin. The writer Gerald Massey proposed to her, but she declined.
A short biography of Ingelow can be found at the website of the Poetry Foundation (https://www.poetryfoundation.org/poets/jean-ingelow). Her Wikipedia page has additional information. A much longer introduction to her life and work, including several studio portraits, can be found at http://gerald-massey.org.uk/ingelow/.