| WS.21 Depart Liverpool/ Clyde | July 29 , 1942 CHART |
| WS.21 Arrive/ Depart Freetown | August 10, 1942/ August 15, 1942 |
| WS.21 Arrive/ Depart Durban | August 29, 1942/ September 3, 1942 |
| WS.21A Detached/ Arrive Aden | September 8, 1942/ September 16, 1942 CHART |
| WS.21B Arrive Bombay | September 19, 1942 |
| WS.21P Depart Liverpool/ Clyde | July 17, 1942 (Joined July 18, 1942) CHART |
| WS.21P Arrive/ Depart Freetown | July 27, 1942/ August 1, 1942 |
| WS.21P Joined by AS.4 (from USA) | August 5, 1942 |
| WS.21P Arrive/ Depart Capetown | August 13, 1942/ August 16, 1942 |
| WS.21P Disperse off Aden | August 29, 1942 CHART |
Note. New additions may have come from AS.4 which joined WS.21P between Freetown and Capetown.
Pdt |
Vessel |
Notes |
41 |
DUCHESS OF ATHOLL | |
32 |
DUCHESS OF YORK | |
12 |
EMPIRE ORIOLE | New addition |
31 |
EMPRESS OF JAPAN | Commodore |
22 |
EXHIBITOR (USA) | New addition |
23 |
HAWAIIAN SHIPPER (USA) | New addition |
21 |
ORONSAY | |
33 |
TARN (Nor) | New addition |
11 |
WINDSOR CASTLE | Vice Commodore |
42 |
ZAANDAM (Du) | New addition |