Dame Marion Kettlewell DBE (1914 -2016) served as a WREN on HMS Woolverstone (stone frigate) in the months leading up to D-Day. This was during the period when Bigbobs (dummy landing craft} were being constructed beside the River Orwell and launched from Cat House hard as part of a massive deception plan known as Operation Quicksilver.
Her memories can be listened by following/pasting this link: https://www.iwm.org.uk/collections/item/object/80017176
For the sections on HMS Woolverstone you need to go to Reel 3: 20.00 to the end. Then reel 4: 0.00 - 2.43.
Above is from Woolverstone F.B. Group.