18th Century women's wear - Stays vs Jumps

In addition to my research on petticoat length I also have been researching jumps and stays. I found it very difficult to nearly impossible to do many tasks that a woman living in the 18th century would have to do. A woman who must take care of things, that is. My character is an active, working woman. She does not have servants who will care for her and do physical tasks as might a wealthy woman.

Stays, for those who do not know, are essentially a supporting undergarment. Both men and women wore stays, although they were primarily for women as I understand it. Stays are worn over a shift/chemise, but under outer garments, especially the upper body garment. Stays are a precursor to what we are familar with as a corset, however, they were not generally worn to the tightness used in the 19th Century, as shown in Gone With The Wind.

Stays do a number of things. They helped to give the body the then-ideal cylindrical shape to the ribcage. They help support the back. And they also support the bust. There really isn't room for the bust in them, which explains the rather shelf-like effect. They certainly will bring any cleavage to immediate notice!

The first pair of stays I had was a typical back-lacing style, without tabs. While I found that my back didn't hurt after a long day of spinning or cooking, by mid- to late-afternoon they started to hit my hips just above my waist, which was very uncomfortable. This is probably due to not having tabs, but I'm not sure, not having worn this style with tabs.

My breathing was also restricted, making hurrying for any distance or running impossible. Of course, with boning from bust to below the waist, I was prevented from bending over or moving very well.

So, how can a woman who must bend over, pick things up, work with large animals or otherwise move around and do things do this in stays? The conventional re-enacting wisdom of the time said "women wore stays". How can this be? I decided there had to be more to the story.

With help from dear friends who are expert researchers in the time period and location I'm interested in, Middleground Kentucky, 1775-1776, references were found to something called jumps. No extant examples had been identified or seen in museums (my friends visit a lot of museums looking for period clothing), but there were references to both unboned and lightly boned jumps. So what are jumps? How can we tell what they were? Some references were for jumps being purchased for a woman who was pregnant or nursing. Some just referenced along with other clothing purchases.

We poured over period artwork and began to notice certain things. We all knew what a woman wearing stays looked like, what sorts of limitations on her movement stays make. We were able to identify a lot of artwork of women who by their positions or the way they looked were clearly not wearing stays. So what were they wearing? We couldn't always tell, but many had some sort of upper body garment on over a shift, with a kerchief covering the bust area but then going into some kind of upper body garment. In most cases the arms were clearly only covered by the arms of the shift. These were all pictures of women doing some sort of work, from carrying baskets, to taking care of children.

Below are some pictures I've found of women wearing jumps. I will make another post with another picture and our modern recreation of it later.

Jean Siméon Chardin

The Laundress

Jean-Honoré Fragonard

A Young Girl Reading - this young lady is clearly not wearing stays. My best guess is that she's wearing jumps under her gown.
Education is Everything - This looks like jumps, or possibly a corset blanc, which leads me to the question is a corset blanc another name, perhaps the French name, for jumps?