A particular officer serving on board a ship during the course of a voyage, and having the charge of the helm and the ship’s route; or a person taken on board at any particular place for the purpose of conducting a ship through a river, road, or channel, or from or into a port. People v. Francisco, 10 Abb. Prac. (N. Y.) 32; State v. Turner, 34 Or. 173, 55 Pac. 92; Chapman v. Jackson, 9 Rich. Law (S. C.) 212; State v. Jones, 16 Fla. 306.