Priscilla King Gray, an integral part of the fabric at MIT for more than 50 years, died on Feb. 8. She was 89. Gray, who had been the wife of former MIT president Paul Gray ’54, SM ’55, ScD ’60 until his death in 2017, co-founded the MIT Public Service Center — since renamed in her honor as the Priscilla King Gray Public Service Center — and was a champion of public service and a leader in efforts to build community at the Institute. She arrived at MIT when her…