Source: Photographs by WTL© (2016) on site at the Museo de las Intervenciones, Coyoacán, México.
Image: A list of Irish Americans who died as a result of the battle at Churubusco between the armies of Mexico and the United States. (This is a most curious "humanities artifact" shown here for its own sake and because it involves the photographer-professor.)
Comments: The heading above the list of 67 names says: "In memory of the Irish soldiers of the heroic Saint Patrick Battalion, martyrs who gave their lives for the Mexican cause during the unjust American invasion of 1847." The words at the bottom say: "With Mexico's gratitude at the 112th year of their sacrifice: September, 1959." The "San Patricios" are still honored in both Mexico and Ireland, but, of course, not in the United States.
The second to the last name at the bottom of the right column is a most likely a relative of the photographer-professor's: John Little, whose paternal Irish Catholic family immigrated to the United States in 1830 and whose son joined the American (sic) army as a path to citizenship. All 48 names on this list were deserters from the American invasion force; they were captured, tried without legal representation, and executed by hanging. What happened is this:
The Saint Patrick Batttalion of the invading American Army was led by John Patrick Riley (1817-c. 1850) and was composed of 175 or more immigrants and European expatriots of many nationalisties, ethnicities, and escaped American slaves, who defected from the American Army to fight for the Mexican Army. The Battalion had both artillery and infantry units, which were used to counter the American "horse artillery." Known in Mexico as "Los San Patricios" and "Los Colorados Valientes," they fought in the hardest battles of 1846 to 1848. President Ulysses S. Grant later commented that the Battle of Churubusco was "about the severest battle fought in the Valley of Mexico." 
Humanities Question: No comment, due to the personal relationship between this online text and subject matter of this Mexican museum display.