William Brooks is the artist providing the earliest title in the Penlee House collection in Penzance, Cornwall.  Entitled Mount's Bay (1794), nothing is known about the artist himself.

There is also an artist named William Henry Brooke (1772-1860) who painted Lanherne Bay, Nr the Nunnery, Cornwall  (1819), a painting that Tate Gallery, London holds. This may or may not be the artist that Penlee House records. Woods lists several artists with William as first or second name and Brooke or Brooks as surname.