Foremost: look at your secondary sources and see what types of primary sources they use!
Then wrote out your topic again, but this time try find terms people might have used during the time period you're studying.
Most Important tip: USE AS FEW TERMS AS POSSIBLE.
The more search terms you use, the more likely you'll use an anachronistic term. Keep it simple, no more than 2 or 3 terms at once.
Limit to your time period of interest and see what comes up!
Note that it points me to a bunch of materials in Special Collections!
It also points me to the keyword & digitized Flat Hat, Colonial Echo, and other useful W&M materials
Use these terms to find specific types of sources in the catalog:
Example results: