Who is John Grimes from Hornblower and the Hotspur and what is their importance?

Grimes serves as Hornblower's steward aboard Hotspur. He is described as unsuited for his position and lax in his duties. Hornblower quickly releases Grimes from his duties and replaced. After his release, Grimes takes his own life. Hornblower compassionately lists Grimes as killed in action, so that his family will be cared for.