This paper describes a case study which sought to determine the motivational factors that prompted a set of triplets to excel in school. The working research questions dealt with different facets of school and home, and explored whether motivation was linked to certain subjects or certain topics within various subjects or was a function of the demands of their parents. Questions were refined as participant observation revealed subtle differences in motivation in the three children. Data were collected through participant observation, semi-structured interviews with the triplets and other key informants; solicited documents; and samples of work done by the triplets. The results showed that within a shared basic framework of self-motivation, each of the three children developed separate, distinct motivational personalities. Positive self-concept and intrinsic motivation were evident in all three children. Each child had varying reasons for motivation including wanting perfection, interest, and wanting to please others. A collective case study is recommended of children of multiple births to inquire further into the phenomenon of motivation. (Contains an appendix with examples of early writings of the triplets.) (Author/JDM)