Good luck, Derek.
You're doing your best and haven't forced anyone to go to any lengths to help you. For my part it was a pleasure to help out in as much as I was able to via my family connection and unearthing of the "emigration to Australia" recollection, sorry I can't provide any documentary evidence. Maybe this one just isn't meant to be, but all the best with it. It'll really be something if you can find out what became of Ethel.
Jamie, nobody here is saying they have been 'forced to go to any lengths to help' Derek, or the daughter of Ethel Quin, who's trying to find out about her mother.
In posting on Rootschat, Derek has asked people here to help him, and that's what we've been trying to do.
I'm quite clear that finding out about the Wills/MMN Quin birth was an effort to see if we could solve the puzzle. It was my choice to research a tree to see if any answers would be produced from that, and indeed to offer to share the results, which Derek's not felt the need to take up.
And in helping Derek (and hopefully Ethel's daughter), we have made the most constructive suggestions we can.
I don't count myself among them, but there are very experienced researchers here who give up their time freely to answer queries. In order to make the best use of time, they will ask relevant questions and also say what research is best to do, and what is not.
We're trying to help, and that is what Derek has asked us to do by posting here.