Sonya Williams, a civil engineer and the president of a parents, teachers and students association, was sworn in Thursday as the newest member of the Prince George’s County Board of Education.

Williams, who was appointed to the position by County Executive Rushern L. Baker III (D), will represent District 9, replacing Donna Hathaway Beck, who resigned in August.

Williams said she looked forward to working with each board member, schools chief executive Kevin Maxwell and the rest of the administration to “move our school system to the next level.”

Williams is the fifth person Baker has named to the board since a state law changed the school system’s governance structure. She is the second appointee to replace an elected board member. In September, the county executive named Lyn Mundey to represent District 7 after former board member Carletta Fellows abruptly resigned.

With five appointees, Baker, who this year sought a complete takeover of the school system, has solidified his influence over the board.

“She’s going to be a real asset to this board,” Baker said of Williams after the swearing-in ceremony. “I feel very fortunate to make this selection.”

It took Baker almost four months to fill the seat.

“It was a long process to select this appointment,” Baker said. “We wanted to make sure we were bringing you one of the best and brightest of the county.”

With resignations and delays in appointments, the board chairman, Segun Eubanks, noted that for the first time since the restructuring, the school board was operating with all 13 elected and appointed members.

“What a remarkable team,” he said. “I’m proud to be a part of it.”