Ice Men
This might sound like a superhero from a Marvel comic book and in their own right ice men did serve an important function. Before the advent of modern freezer units, these men would hand-saw individual ice blocks from lakes and rivers. That ice was used to store food throughout the cold winter months. The job started in the 1800s, involved long hours and a lot of heavy lifting. This is another job that was once against removed thanks to modern technology.
