Just now I Googled "Violet Darbon" to get the spelling of her married name (an "e" at the end of "Munro" or not? I couldn't remember.) and found your post. Violet worked for my aunt's family in the 1930s and 40s. I'm putting a book together of my aunt's photographs and have a few of Violet (and so, needed her last name for the caption).
Can I ask what your connection is to her? I'm happy to share scans of the photos I have.
Also, what is a home child?