I am seeking the training dates and wartime postings of 47172 Flt Lt Isaac Edward HOWITT.

b Grantham, Lincs, 24 Dec 11
joined RAF as airman plt, 12 Oct 36

Desford (7 EFTS?), date?
Crse 19, 3 FTS Grantham, date Jan-5 Aug 37

Sgt Plt, 8 Aug 37
41 Sqn, 8 Aug 37-15 Dec 40

17 War Flying Instructors Course, location?, 16 Dec 40
postings wanting 1941-45
Temp Flt Sgt, date?

com Prob Plt Off (47172), 15 Oct 41
Prob Fg Off (WS), 1 Oct 42
Flt Lt (WS), 15 Oct 43
released from RAF, 1945

Any additional data on his postings would be appreciated, please.

Thanks
Steve