ABSTRACT In this article, we introduce the case study of Dodge Morgan, who, at the age of 54, completed a nonstop, solo circumnavigation of the earth in his boat American Promise. Our investigation builds upon a unique foundation of qualitative and quantitative data, which includes extensive formal assessments, content analysis of Morgan's voyage log, additional autobiographical material, and diverse collateral biographical sources. We describe our intent of applying two theoretical models of personality, the five-factor model and the life-story model, to the data, and present an overview of their differing perspectives and predictions. We discuss technical challenges of methodology and integration, and introduce the subsequent chapters comprising the full case study.