Robert Southey (1774-1843) isn’t well-known these days. A minor Romantic poet, he was friends with William Wordsworth and S. T. Coleridge, who have gone on to enjoy much more fame than he did. But as well as poetry, Southey wrote essays, letters and biographies- and, incidentally, the classic children’s story of the Three Bears.
Stevie Smith once claimed not to read any modern poetry. Whether or not that’s true, she certainly got most of her echoes from older writers: Tennyson, Euripides and the (now perhaps largely forgotten) contents of the Palgrave Treasury.
I think she was also deeply influenced by the Romantics.