Samuel T. Coleridge
Consider the works of Samuel T. Coleridge. Wordsworth and Coleridge were sometime-friends and lifelong colleagues. They collaborated on the first edition of the Lyrical Ballads. Though they worked together all their lives, they had a gradual falling out over differing temperaments, Coleridge's relative success because of his sociability, and Wordsworth's desire for discipline and tranquility set against Coleridge's moods and opium addiction.
Coleridge wrote more extensive prose criticism, most famously and significantly the Biographia Literaria. Students of Wordsworth would learn a lot from Coleridge's discussion of Wordsworth's poems in the ...