What's A barrel maker called?

This video tells about the history of coopering, and shows the traditional method of building kegs and barrels in pioneer times.  The setting for this video is the Whitchurch-Stouffville Museum, located in Vandorf, Ontario.  The video is 15 minutes long and is suitable for the woodworker as well as elementary school students.   Here's the YouTube link to the video...
https://youtu.be/0QDB_2-dRqM 
If you are a teacher showing this video in your class, feel free to encourage your students to email me ([email protected])  any questions they might have and I will respond as soon as possible.