Welcome to the forum Morrie and a Happy New Year.
The Coastwatching association could have been on Thursday Island.
49th Battalion (Stanley Regiment): Australian War Memorial
The first lot below from Digger History:
Militia (CMF) all the details of 'The Chockos' By 7 December 1941, the AIF had units in the Middle East, Malaya, Australia, the islands and the United Kingdom. The role of the militia changed on the 19th February 1943, when the Defence (Citizen Military Forces) Act was passed. Commonly known as the Militia Bill, it defied the area by which those units could be stationed. It also allowed for Militia units to pass to AIF control if more than 75% of the units strength or 65% of the authorized "war establishment", whichever was greater, had volunteered to join the AIF. By this time 15 AIF and 8 Militia Battalions had gained battle experience in New Guinea. The militia battalions belonged to the 7th Brigade (9th, 25th and 61st Battalions) in the successful defence of Milne Bay; the 30th Brigade (3rd, 39th and 55th/53rd Battalions) which had fought over the Kokoda Trail and the 14th Brigade (36th and 49th Battalions) which had joined the four AIF Brigades in the attack on Gona and Sanananda.
The next detail I assume you already have had sent to you because it is not listed as digitised.
http://naa12.naa.gov.au/scripts/Item...O=0&M=20&F=141
The other is a bit more detail from Digger History.
New Guinea Force