• Edison O. Jackson, president of Medgar Evers College in Brooklyn, New York, has announced his retirement. Dr. Jackson has led the college, which is part of the City University of New York system, for the past 20 years.

Dr. Jackson earned a bachelor’s degree in zoology and a master’s degree in counseling from Howard University. He holds a doctorate in education from Rutgers University.

• Ronald S. Sullivan Jr., clinical professor of law at Harvard Law School, was appointed master of Winthrop House, a residence hall for undergraduate students at the university.

Sullivan is a graduate of Morehouse College and Harvard Law School.

• Rubens J. Pamies, vice chancellor for academic affairs, dean for graduate studies, and professor of internal medicine at the University of Nebraska Medical Center, was named chair of the Advisory Committee on Minority Health at the U.S. Department of Health and Human Services.

• Herman Mason Jr. was inaugurated as the 33rd general president of the Alpha Phi Alpha fraternity. A noted historian, Mason is vice president of student services at Morehouse College in Atlanta.

• Joseph M. Stevenson was appointed provost, senior vice president, and chief operating officer at Mississippi Valley State University. He was the director of the executive Ph.D. program in urban higher education at Jackson State University. He previously was provost at Jackson State.

Dr. Stevenson holds a bachelor’s degree and two master’s degrees from California State University. He earned a third master’s degree and an educational doctorate from the University of Oregon.