As a review, primary resources are resources that are from the historical period that you are researching. Searching historical newspapers can be a little tricky. If you are unfamiliar with your historical figure, event, or time frame, start with reference resources first.
Here are examples of what would be an appropriate newspaper article as a primary resource on Florence Nightingale.
Who is Mrs. Nightingale? (1854, November 23). Evening Post. pp. 1. Retrieved from America's Historical Newspapers database.
To search the newspaper effectively: