Library of Congress: Mexican American Migrations and CommunitiesAmericans of Mexican descent were been part of the fabric of American life throughout the 19th and 20th centuries, in small towns in the Southwest, in the industrial cities of the Great Lakes, and beyond. From the military to the arts, from politics to business, science, and more, the contributions of these earlier generations of Mexican Americans are an essential part of the American story. Some highly selective examples are: During World War II, about 350,000 Mexican Americans served in the U.S. military, with several receiving the Medal of Honor. Mexican Americans have served as members of the U.S. Congress, heads of cabinet departments, governors of states, members of state legislatures, mayors of cities large and small, and members of city councils. Representative Joe Baca served in the U.S. Congress for more than ten years, representing districts in California. Mexican Americans have excelled in all areas of the arts, including visual arts, the theater, music, literature, and dance. Today, writers such as as Sandra Cisneros and Pat Mora and artists such as Rafael López continue to explore the creative legacy of a cultural heritage that crosses borders.