Among the famous persons who also worked, at some time in their career, as librarians, we also find famous Scottish poet and lyricist Robert Burns (1759-1796):
In Dunscore, Dumfries a squire had set up a parish library for his tenants and neighboring farmers, with Robert Burns serving as librarian.
Rose, Jonathan. The Intellectual Life of the British Working Classes. New Haven and London: Yale Nota Bene, 2001. 0-300-09808-1.