When was Madame Female Minstrels created?

There is no record of a group or act called "Madame Female Minstrels." It's possible there's a misunderstanding or misspelling in the name.

Could you please provide more context or information about this group? For example:

* Is there a specific time period you're interested in?

* Are there any other details about the group, like their location or type of performance?

With more information, I can help you find information about the group or point you in the right direction.