You are mostly right in your assumptions.
A. Anne Bradstreet wrote 3. colonial poetry.
B. William Bradford, as the first governor of Massachusetts, had to had to write 1. colonial journals and documents, although he might have written all kinds of other stuff.
C. Olaudah Equiano, as a former slave, wrote his autobiography, so 2. slave narratives.
D. Thomas Jefferson wrote 4. revolutionary/protest writing.