If you just want the newspapers, I would suggest
https://www.britishnewspaperarchive.co.uk/BUT! Before spending the money, I highly recommend using the free search first. It will only show you a few lines that the OCR is seeing (it is a computer "scanning" the paper, not a person), but hopefully enough to figure out if it could be your family. Collect the dates and newspaper names of all the articles you think could be relevant, and then subscribe for the shortest time period, and then using your list, retrieve the articles. The newspaper will highlight your search words on the page.
Don't just look for their deaths/marriages, look at everything in their lives. For example, Cassie's husband died young, but the news has the article on that, which is very sad, but worth reading.
If you just put in a name, you will get all the returns, but you can narrow it down by area, newspaper, and/or date.
I was just looking at Frank Jr's multiple memorials from his family, (wife Winnie), so I do believe this is the right family, his siblings match. They asked both Canada and Australia papers to copy.
The only reason I was able to find this family was via the death of Frank and Mary's son Robert, which just shows how important it is to find everything about all children and siblings, not just move in a straight line back.
