http://www.npr.org/templates/story/story.php?storyId=124251060 Milkman Before refrigerators were a common household item, people had no way of keeping milk from spoiling. Milkmen would deliver the product to people’s homes on a daily basis, which was considered a very essential job to society at the time. Elevator Operator They were in charge of taking passengers to their desired floor and keeping passengers safe.… Read More