James Henry Leigh Hunt (1784 - 1859). Best known as Leigh Hunt, was an English critic, essayist, poet and writer. For more information about her and poems on Poemhunter: http://www.poemhunter.com/james-henry-leigh-hunt/
This is John Keats's signature, including his nickname 'Junkets', from a letter to Leigh Hunt, 10 May 1817. It was Hunt who dubbed Keats 'Junkets' due to the poet's Cockney-esque pronunciation of his name.