Hello again, You probably know about the National Archives of Australia web site. I just had a search for Avotins and Paegle. A lot of Paegle and Avotins appear.
One record for Michael Paegle (Michal/Mikal) has been digitised which means you can see the document and photos. It is very interesting and has been digitised so you can read his complete Australian Imperial Forces (Army) war service record for WW1. Even if he is not a relative of yours, as someone interested in history, you might like to read it. Michal says he was a sail maker, he joined the AIF in 1916, was wounded, there was an inquiry where he was ckeared, he sadly died in action in 1918, was awarded 3 medals, has his name on the great Roll of Honour. The file includes letters from a Private C.M. Alskne (Army) to the AIF.
My guess is the Avotins file was digitised because an Australian Latvian recently researched and wrote a book about 'Russian Anzacs'. Of course, a lot of the 'Russians' were Latvians.
The Australian War Memorial web site has profiles of each 'Russian Anzac' with photos, family names, dates of birth and death and military history. I'll have a look and see if Avotins is there too.
Now I have to try to remember where I saw someone looking for Alksne.