Baker scholarは首席卒業生の呼称と考えて間違いないのではないでしょうか？
「１人」とは限りませんが、卒業時に上位５％以内（全科目の７，８割近くをトップの成績を収めた人が多い）で、最優秀の成績でＭＢＡを取得した学生に与えられるhonorである、と書かれていますから。
それにたいして、１年ごとにトップの成績を収めた学生(特に１年時)にはFord Scholarship(奨学金)が与えられ、Ford Scholarと呼ばれるそうです。
http://en.wikipedia.org/wiki/Harvard_Business_Schoolより
Academic honors
The top academic honor at Harvard Business School is the Baker Scholar designation (High Distinction), given to the top 5% of the graduating MBA class. In a typical year a Baker Scholar will have achieved "1s" in approximately 70 - 75% of his or her course credits. Students receiving honors (top 20%) in both their first and second years are awarded the MBA degree with Distinction.
The student who receives the highest grades in each year of the program is awarded the Henry Ford II scholarship and is known as the Ford Scholar. For a typical student to attain this honor, he/she must achieve the highest available grade in each of the eleven MBA classes during the first year of the program. Other academic distinctions include the Thomas M. and Edna E. Wolfe Award, given to recognize scholastic excellence (generally to the student with the highest grade in the class) and the Loeb prize given for the most outstanding performance in finance.
お礼
回答ありがとうございます。 参考になりました。