Use the Gale eBooks database (link is below) to find short overview articles on topics related to your research.
Some recommended search terms:
The following articles from the free online World History Encyclopedia will give you background on On Plymouth Plantation and New English Canaan as well as Anne Hutchinson's trial.
Often the best information on historical topics is found in books, not articles. Use the table of contents and the index to locate the chapters/sections that are most relevant to your topic.
If you'd like much more in-depth instruction about the process of conducting research, please check out our guides: