Complex sentence: On 2 August 1940, "Stringham" was redesignated APD-6; and, on 11 December 1940, she was recommissioned at Norfolk, whence she operated until mid- 1942.
Split into simpler sentences: On 2 August 1940, "Stringham" was redesignated APD-6. On 11 December 1940, she was recommissioned at Norfolk, whence she operated until mid- 1942.