I know it's a long time since you posted this, but I am just starting on this path. Hope you are still there. I think your Kuhnle family might be the ones I am looking for. John (possibly Jakob) born London circa 1893 came to Australia early 1900s. He is my grandfather and was a baker. Family knows nothing except his parents moved from Germany to England mid to late 1800s and he was one of many children living in London. There was mention of a sister Daisy.
At least one sibling went to America.
I would be interested in "talking" to you.