Final answer:
The question does not specify which founder received a Master of Science from the University of Chicago, but the university is known for its distinguished alumni such as Stephen Ell and has been significantly supported by philanthropist Rockefeller.
Step-by-step explanation:
The individual who received a Master of Science from the University of Chicago mentioned in the context of the references provided is not specified in the question, but it is clear that the University of Chicago has a rich history of distinguished alumni and faculty. Among them is Stephen Ell, who received both a Master's degree and PhD in medieval history from the university. Additionally, the University of Chicago was substantially supported by philanthropist Rockefeller, and has been a workplace for renowned individuals such as Chandra who contributed significantly to astronomy.