These were "Bolivar", a subchaser, and T.S.M.Y. "Excalibur". He was a squadron commander and a subchaser. Mines damaged three minesweepers, the tug, , and a subchaser. On 13 June, she intercepted a three-ship convoy, escorted by a subchaser. On May 18, 1943, his subchaser left Portland. Exploding mines damaged three minesweepers, the tug "Patuxent", and a subchaser. During the Evacuation of Tallinn, she accidentally rammed the subchaser "MO-407", but remained afloat.