The Comanche Vocabulary collected in Mexico during the years 1861-1864 by Manuel Garcia Rejon is by far the most extensive Comanche word list compiled before the establishment of the Kiowa-Comanche-Apache Reservation in 1867. It preserves words and concepts that have since changed or even disappeared from the language, thus offering a unique historical window on earlier Comanche culture.

This translation adds the English equivalents to the original Spanish-Comanche list of 857 words, as well as a Comanche-English vocabulary and comparisons with later Comanche word lists. Daniel J. Gelo's introduction discusses the circumstances in which Garcia Rejon gathered his material and annotates significant aspects of the vocabulary in light of current knowledge of Comanche language and culture. The book also includes information on pictography, preserving a rare sample of Comanche scapula drawing.

This information will help scholars understand the processes of language evolution and cultural change that occurred among all Native American peoples following European contact. The Comanche Vocabulary will also hold great interest for the large public fascinated by this once-dominant tribe.