Which of the following was NOT a group of people that worked on the railroads? a. Chinese Immigrants
b. Freed slaves
c. Irish immigrants
d. White settler

D white settlers I’m pretty sure the railroad hired Chinese immigrants Irish and freed slaves (google stated that California railroad company’s hired these people) this makes sense Any way because there were so many Irish, freed slaves and Chinese immigrants it would make sense to give them that job so D white settlers sorry that took so long this is my first time answering people’s questions wanted to get it right so the answer is d

In the midwest because it has more moderate climate than the north or south west which makes farming far easier.