From 1938, Kanner began to study a group of eleven young children (eight boys and three girls) who came to see him at his clinic at the Johns Hopkins Hospital. For each of the cases, Kanner provides a detailed account of the symptoms, health, results from diagnostic tests, familial background, and future development and progression of the children. Adding to his own observations, Kanner further contextualized the lives of his patients by including typically epistolary inputs from family members and other individuals with whom the children interacted. Generally, all of the children shared certain symptoms and came from similar socioeconomic and cultural backgrounds (all but two of the families were of Anglo-Saxon descent). The following are summaries of each of the eleven cases: