A Continent Divided: The U.S. - Mexico War

https://library.uta.edu/usmexicowar/

A Continent Divided: The U.S. - Mexico War is a collaboration between the Center for Greater Southwestern Studies and the University of Texas at Arlington's library. This war remains "the largest and most significant armed struggle between two nations in the Western Hemisphere." One of the major missions of this project is to "digitiz[e] primary source materials drawn from the UT-Arlington Library's Special Collections, long recognized as one of the premier repositories on the 1846-1848 conflict." Visitors to the site have a plethora of topical material to browse, including collections in the library relating to the war and original maps from the mid-19th century, and embedded story maps. Readers who enjoy looking through archived newspapers may want to navigate to that section, available under Documents from the Browse tab. Topical story maps (created using the esri platform) are available under the Topics tab; some included titles range from "Army of Occupation," "Women and the War," and "Occupation and Aftermath." 

via https://scout.wisc.edu/archives/r50994/a_continent_divided_the_us_-_mexico_war