Greetings from newcastle upon tyne England You don't mention what type of minesweeper your father served on ? there were many diferent classes built during WW2. Agood site to look at is www.tca2000.co.uk they deal mainly with ton class minesweepers ,but many of their members served on all sorts of vessels during the war and they may be able to help you .You could also try http://www.hmsgangesassoc.org/http://www.hmsgangesassoc.org/ Hms Ganges was a training establishment for Royal Naval personel from 1905- 1976 Again many older members they too may be able to help . If you need anymore help let me know . Good hunting Dave .