In a 1976 paper, Robert DeKosky wrote ‘William Crookes is a puzzle to historians of latenineteenth century science. Despite his achievements we are forced to ask why he did not accomplish more.’ It is an interesting question; equally interesting is the question that prompts this paper – how did he accomplish so much?Why some scientists become prolific and successful is a question with both historical and ahistorical dimensions. Among the former are a number of cultural aspects rarely studied by historians. (...) They include the nature of childhood experience, family attitudes, mentoring, and the existence of intellectual and practical support networks in adulthood. Ail are important, but how they contribute to individual success varies with time and place. (shrink)