I've found copies of Dear Mistress 36 and 46, the latter of which features a number of the ladies featured in Madame - Madame Rosa, Tanya Hyde and so on.
Both are available as PDFs, see the (Dear Mistress) page here for other issues - https://swishpublications.wixsite.com/swish/blog/dear-mistress-36-and-46-added
