Bf109E Queries 1940

[steve sheridan]

Hi could anybody confirm the identities of the following a/c.
I have discrepancies with a/c numeral codes or Werknummer.

30.8.40 Lt Rudolf Ziegler StabII/JG54, now according to Nigel Parker's " Luftwaffe Crash Archive Vol.3" , he states Ziegler was flying W.Nr 1643 wht 5+ Whereas Prien in his " Jagdfliegerverband Vol 4-II " states W.Nr 6072 <-+
Also,
30.8.40 Oblt Hans Rath 4/JG54 W.Nr 6072 wht 6+, the same sources again differ, Prien says W.Nr 1643 wht 5+ ( who is right ? )

Again the same sources differ with Vol 4 " Luftwaffe Crash Archive "
27.9.40 Lt Heinz Geist 4/JG52 W.Nr 6245 wht 4+ , whereas Prien says wht 5+
27.9.40 Fw Franz Bogasch 4/JG52 W.Nr 5181 wht 5+, whereas Prien says wht 4+.

If anybody can clarify these incidents i would be most grateful, particularly if they have the matching NVM's to support these.
Best regs,
Steve.