This article presents a testimony to the late Dr. Thomas P. Carter. Well known for his classic (1970) book, Mexican Americans in School: A History of Educational Neglect, Carter was an activist scholar and pioneer in Mexican American education. His considerable interactions with South Americans, Mexicans, and Mexican Americans served as a foundation that forged a lifelong commitment working toward equal educational opportunities for Mexican American students. It is clear from his biographical information that Dr. George I. Sanchez, whom Carter studied under while pursuing his doctorate in education at The University of Texas at Austin, helped to shape Carter's antideficit thinking perspective and structural analysis approach in doing research on Mexican American students. In this tribute to Carter, author Richard Valencia focuses on four of Carter's major accomplishments: (a) his 1970 classic book, Mexican Americans in School; (b) his influence on the education chapter in the Grebler, Moore, and Guzman (1970) book, The Mexican-American People: The Nation's Second Largest Minority; (c) his influence on the landmark U.S. Commission on Civil Rights Mexican American Education Study of 1971-1974; and (d) his role as an expert witness in Mexican American-initiated litigation, particularly the highly significant Cisneros v. Corpus Christi Independent School District (1970) school desegregation case. Based on these accomplishments, in particular, Dr. Thomas P. Carter emerged as one of the foremost contributors of his time in advancing the field of Mexican American education. As well, he needs to be acknowledged for assisting the Mexican American people in their quest for educational equality.