In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.
Q: Passage: As the schools in Eatonton were segregated, Walker attended the only high school available to blacks: Butler Baker High School. She went there to become valedictorian and enrolled in Spelman College in 1961 after being granted a full scholarship by the state of Georgia for having the highest academic achievements of her class. She found two of her professors, Howard Zinn and Staughton Lynd, to be great mentors during her time at Spelman, but both were transferred two years later. Walker was offered another scholarship, this time from Sarah Lawrence College in New York, and after the firing of her Spelman professor, Howard Zinn, Walker accepted the offer. Walker became pregnant at the start of her senior year and had an abortion; this experience, as well as the bout of suicidal thoughts that followed, inspired much of the poetry found in Once, Walker's first collection of poetry. Walker graduated from Sarah Lawrence in 1965.
Link Information: Howard Zinn (August 24, 1922January 27, 2010) Answer: Howard Zinn
A:
Which professor who were Walker's mentors at Spelman was born first?