Originally a presidio on the frontier of New Spain, Tucson was a Mexican community before the arrival of Anglo settlers. Unlike most cities in California and Texas, Tucson was not initially overwhelmed by Anglo immigrants, so that even until the early 1900s Mexicans made up a majority of the town's population. Indeed, it was through the efforts of Mexican businessmen and politicians that Tucson became a commercial center of the Southwest. "Los Tucsonenses" celebrates the efforts of these early entrepreneurs as it traces the Mexican community's gradual loss of economic and political power. Drawing on both statistical archives and pioneer reminiscences, Thomas Sheridan has written a history of Tucson's Mexican community that is both rigorous in its factual analysis and passionate in its portrayal of historic personages.

Thomas E. Sheridan holds a joint appointment as professor of Anthropology at the Southwest Center and the Department of Anthropology at the University of Arizona. He has authored or co-edited eleven other books.