The Federation of Genealogical Societies and the National Park Service’s Palo Alto Battlefield National Historical Park have collaborated on creating the U.S.-Mexican War Solider and Sailor database.
This searchable database has information on over 88,000 U.S. and Mexican veterans. Records include personal details such as hair color and occupation. Volunteers from the Federation of Genealogical Societies provided volunteers to input the data.
Individuals who participated in the war came from many countries and states.
To start searching the database, go to: https://www.nps.gov/paal/learn/historyculture/search-usmexwar.htm#sort=Title%20asc