Hello /r/AskHistorians, this is my first time posting to this subreddit. I am here to ask for help with a research paper that I need to write for a college class. I know this is not the place to be asking for homework help. However, all I need help with is for someone who is familiar with the history of U.S. education to please direct me to some reliable sources which I will read an analyze, and then come here with the right questions. I have done some research but I am having trouble finding reliable sources (my research skills are not the best). So far, my actual questions would be:

How were blacks and Hispanics treated (policy wise) during the first half of the 20th century. My understanding is that Blacks were thought only capable of menial labor, and Hispanics were directed towards technical trades (car mechanics and such) and not allowed to go to university.

If someone could please direct me to the right sources I would greatly appreciate it.

I thank you all for taking the time to read this.