Use the advanced search and the “creator” field to search for writing by historically important nurses. General keyword searches work well to find historical treatises on nursing practices.
a database of health statistics for Oklahoma and includes vital statistics (births and deaths), hospital discharges and outpatient surgery, and the results of the Behavioral Risk Factor Surveillance System and Youth Risk Behavior Surveillance System surveys and cancer and injury registry data. The level of detail is enormous. Start with the standard tables or a very limited number of variables to get an overview.
The Annie E. Casey Foundation offers a well respected compilation of statistics on the health and well-being of children nationally and by state, congressional district, county, and major city.
Internet search for scholarly journal articles. Searching is free, but there may be a charge to view full text. Check the library's journals list and consider ILL before paying.