Defending Fremantle is a 2009 book by Graham McKenzie-Smith
It has details of the 1942 and 1944 events where there were possibilities of the war extending to Fremantle
(Articles about 1942 and 1944 scares on Wikipedia)
Citation | author1=McKenzie-Smith, G | title=Defending Fremantle, Albany and Bunbury, 1939 to 1945 | publication-date=2009 | publisher=Grimwade Publications | isbn=978-0-9806291-0-1
(Article about McKenzie-Smith on Wikipedia)
Map on page 6
Coast Defences of Fremantle
Rottnest
1 Oliver Hill Battery
2 Bickley Battery
3 Signal Ridge
Mainland
4 Artillery Barracks....