The links below are specifically for the Honor's Comp primary source project. All other students should look to start in the US History or Gale ebooks databases to get started.
A few of the e-books available in the Gale e-books database:
https://dp.la a good first place to start when looking for primary sources. Think of the DPLA as a one stop shopping place which will direct you to libraries, museums, archives that have digital collections.
Tutorial: DPLA Search Tips
Some significant people/terms from the era that might lead to primary source materials: