Here is UCSD Social Sciences & Humanities Library's video that defines primary versus secondary sources of information in the humanities.
"Primary sources . . . are defined as the direct evidence of a time and place that you are studying – any material (documents, objects, etc.) that was produced by eyewitnesses to or participants in an event or historical moment under investigation. Secondary sources, in contrast, are interpretations – often generated by scholars – that are based upon the examination of multiple primary sources." (from Primary Source.org)
What types of primary sources might have been produced that would be relevant to your topic? Which persons or organizations might have produced materials?
Possible formats include:
On the 3rd floor of the Library, Special Collections specializes in (PRINT) historical materials relating to
Texas Wesleyan on Portal to Texas History
The Portal to Texas History is a gateway to rare, historical, and primary source materials from or about Texas. Created and maintained by the University of North Texas Libraries, the Portal leverages the power of hundreds of content partners across the state to provide a vibrant, growing collection of resources.
Explore the fact and the fiction of westward expansion in America from the early eighteenth to the mid-twentieth century. Contains a wide range of rare and original documents including printed books, journals, historic maps, broadsides, periodicals, advertisements, photographs, artwork, and more.
Collection is the source of Adam Matthew's American West Project.
US Census State & County QuickFacts
Quick, easy access to facts about people, business, and geography
Official Portal of Texas: Population and Demographics
Links for sites with demographic details of Texas broken into state, city and county segments that incorporate business and industry data, climate information, incomes, median and average house prices, individual and household incomes, economic and financial details, national comparisons, census records, reports and online interactive research tools.