Who is Brown (Hornblower's bosun and servant) from Commodore Hornblower and what is their importance?

Brown is Hornblower's man-servant on land and coxswain at sea. He is good at nearly everything he does, whether it be driving horses, mending clothes, or supporting Hornblower. Throughout the novel, Brown is tireless and dedicated in supporting Hornblower, always offering a cloak or a cup of tea as appropriate to the situation.