One of my two grandmothers worked in a school, only whilst her own children were at school (50s/60s). She had only stopped work once pregnant; the other grandmother stopped as soon as she married.
One of my four great-grandmothers (1900s-1930s) worked, but only because her husband walked out on her, leaving her impoverished. All had either stopped paid work on marriage, or never worked outside of the home.
None of my eight great-great grandmothers worked, except that one would be called up to the "big house" a few times a year to do some specialist baking. That's the earliest generation that there's family knowledge of (as opposed to the census etc).
Back to the first census, it seems that the women were not generally working outside of the home.
There was a line of wealthy aristocrats in my family, but most are either middle class or working class, and some very poor. Mostly English, some Welsh and some Scottish.
It's only on Mumsnet that I've read how all women used to work outside of the home, and that certainly wasn't the norm in my family.