A bargeman is a person who operates a barge, which is a large, flat-bottomed boat used for transporting goods on canals and rivers. A canaller is someone who works on a canal, while a BARGEE is a person who operates a barge, and a keeler is someone who operates a keel, which is a type of boat similar to a barge. All of these jobs are related to the job of a bargeman, as they all involve operating boats on waterways.