The destroyer returned to her gunfire support role off Saipan on 6 July and the next night, 7 July, she was called upon to rescue a group of soldiers cut off from Allied lines and stranded on the beach. "Heywood L. Edwards" put over her whaleboat and made four shuttle trips over the reefs to rescue 44 men, transferring them to a nearby LCI. Between 19 and 21 July she shelled Tinian in support of the impending landing there, returned to Saipan for fire support duties and got underway from the Marianas on 30 July for Eniwetok.