The American Enterprise Institute for Public Policy Research, a non-partisan, non-profit publicity supported educational and research organization based in Washington, has chosen William J. Baroody Jr. as its new president effective July 1. He succeeds William J. Baroody Sr. who eill remain as counsellor to the Institute.

Baroody Jr. served as an assistant to former president Ford from 1974 until he joined AEI in January 1977. While at the White House, Baroody organized and ran the Office of Public Liaison. He also served in the Nixon administration as speical assistant and special consultant to the president.

Before joining the White House staff, he worked in the Defense Department from 1969 to 1973 as assistant to the secretary and deputy secretary of defense. Baroody has served as executive vice president of and chief operating officer of AEI before his appointment.

Pan American World Airways has named Martin R. Shugrue regional managing director for the carrier's eastern-central region, which includes Washington, Maryland and Virginia. Shugrue will work out of Washington and will be responsible for all Pan Am operations, customer service and marketing in the area.

He joined Pan Am in 1968 as a pilot and flight engineer and in 1970 was named to the staff of the executive vice president and general manager of the airlines. Since 1974 he has served as staff vice president-corporate personnel.

Security National Bank announced the election of Lt. Gen. John A. Kjellstrom Ret.) and Thomas J. Schaeler to its board of directors.

Gen. Kjellstrom is president of the Armed Forces Relief and Benefit Association. He served as director of the Army budget and comptroller of the Army before retiring from active duty last year.

Schaefer is executive vice president and chief administrative officer of Security National.

The dean of Howard University's School of Law, Wiley A. Branton, was elected to the board of directors of Columbus Federal Savings and Loan Association.

Branton achieved national prominence as the chief counsel for the black plaintiffs in the Little Rock, Ark., school desegregation case. From 1965 to 1967 he served as special assistant to former Attorneys General Nicholas de B. Katzenbach and Ramsey Clark. He also served as executive secretary of the president's Council on Equal Opportunity, established by Lydon B. Johnson.

Branton became dean of Howard University's School of Law on Jan. 1 and was previously a partner in the Washington law firm of Dolphin, Branton, Stafford & Webber.