Possibly the swiftest route to your roots.
Irish genealogy website directory.
knockanure.jimdo.com/irish-mexico/
Description:
One of the least-known stories of the Irish who immigrated to America in the 1840s is that of the Irish battalion that fought on the Mexican side in the U.S. - Mexico War of 1846-1848. They came to Mexico and died, some gloriously in combat, others ignominiously on the gallows. United under a green banner, they participated in all the major battles of the war and were cited for bravery by General López de Santa Anna, the Mexican commander in chief and president.
