The 1961 booklet is the report of a 2-year study of mental health problems and needs of Mexican Americans in one area of San Antonio, Texas. The Good Samaritan Center in San Antonio and the Division of Mental Health, Texas Department of Health, conducted the study as part of an effort to develop a project of preventative services. According to the report, Mexican Americans constitute approximately 15 percent of the total population of Texas. Concentrated largely in the southern half of the state, they constitute over 50 percent of the population of that area. The report is divided into 4 main sections: (1) Neighborhood Characteristics, (2) Children and Their Mental Health Needs, (3) Health Factors and Family Relationships, and (4) Considerations for Service. Included in the document are 2 appendices: (1) Case Selection and Interviewing and (2) Bibliography of Related Studies. (EJ)