Des Moines Public Schools’ longest-serving board member, Teree Caldwell-Johnson, has submitted her resignation after nearly two decades due to health issues, the Des Moines Register reports. In recent months, Caldwell-Johnson has been attending school board meetings online after announcing a cancer diagnosis last year. Caldwell-Johnson has also pulled back from her role as president and CEO of Oakridge Neighborhood, a Des Moines nonprofit that provides services such as housing for families in need, according to a news release. The board of directors has selected Kristin Clayton, vice president of finance and administration, to take on Caldwell-Johnson’s role as acting CEO at Oakridge. “It has been my privilege to have been elected to serve on the Des Moines public school board over the past 18 years,” Caldwell-Johnson wrote in her resignation letter. “And my greatest honor is to have served three terms as the board chair. Our district’s commitment to student outcomes and policy-focused governance has created a win-win for our district and our current and future students.” Caldwell-Johnson was honored as a Business Record Woman of Influence in 2002 and wrote about Oakridge Neighborhood for Business Publications Corp.’s 2023 Pillars of Philanthropy publication.