Noah Webster's Dictionary (n.) The man at the helm; a steersman.

Multi-Version Concordance Helmsman (2 Occurrences) Acts 27:11 But the centurion believed rather the helmsman and the shipowner than what was said by Paul. (DBY) James 3:4 Behold also the ships, which are so great, and driven by violent winds, are turned about by a very small rudder, wherever the pleasure of the helmsman will. (DBY YLT)