This is NOT part of your assignment, but I want to take a moment to let you all know this exists. Historical statistics is an important field of historical research. How much did a dock worker make in 1820? How much in 1840? How much did a teacher in Boston make compared to a teacher in Richmond in 1850? Thankfully, researchers have compiled this data for us.
You don't need, and shouldn't use, these data in this project, but I want you to know they exist.
WW1 Statistics in our collection