"The bottom line is that nobody has ever been able to verify the authenticity of this list of rules. It has been reproduced in countless newspapers and books over the last fifty years, and copies of it have been displayed in numerous museums throughout North America, with each exhibitor claiming that it originated with their county or school district" (excerpt from snopes)
Wether this is real or not I can't really say, but it is definitely not a new thing
Seems reasonable for the time. Most of it is just basic good-standing practice and the understanding at the time that a woman's role was domestic, so if you chose to do something non-domestic you can't do both, and dress-code.
Wether this is real or not I can't really say, but it is definitely not a new thing