Final answer:
The individual who attended Kimball Union Academy and subsequently became the first president of Clark University is an unidentified historical figure, possibly linked with educational leadership and the history of U.S. academia.
Step-by-step explanation:
The individual who went to school at Kimball Union Academy in Meridian, New Hampshire, and later became the first president of Clark University in Massachusetts, is highly likely to be a historical figure associated with academia. Although the provided information does not directly identify this person, based on the details given, we can determine that the subject matter pertains to the history of education and influential educational leaders in the United States. This analysis is significant in understanding how educational institutions and their leaders have shaped academic thought and learning environments over time.