Wartime fashions were well documented - fabric was limited, skirts were short, many women are shown wearing skirt-suits with slightly mannish ( military influence?) jackets, and heavy stockings - "nylons" came, largely, with the Americans! Hats were not rationed, so could be quite fanciful.
After the war, my mother was in her 30s, The "New Look" wasn't as widespread as all that. She continued to wear the same sort of suits, although skirts became longer. A tailored cotton blose - never called a "shirt" was often worn beneath it, or a finely knitted or crochet jumper. Cotton dresses for summer, quite nicely cut - a name like "Tootall, although that's not it, and Horrocks for the cotton spring to mind. Skirts on the dresses were often cut " on the cross", giving a wider hemline. Cotton blouses and wide skirts were often worn at home in warmer weather. Cardigans were often home-knitted, and shoes were more sturdy still, with cuban or french or cone heels, than came later in the 1960s, with their stiletto heels. A camel coat was a staple, my mother did not like furs, although my grandmother had one of those fox doo-dahs, with a pathetic head hanging down on each side. An astrahkan ( no idea how it is spelled, but a very tightly curled fleece) trimmed jacket and a "poodle" short coat spring to mind. Skirts were often tweed or tartan, a little slimmer than "A" line, but not quite pencil cut.
Handbags usually had a frame, and one or two handles. Shoulder bags were rarer than they had been. Gloves were worn, usually matching the shoes. A necklace, graduated pearls, or other beads, was a usual item of jewellery.
If working in a house, women often wore a wrap-over floral overall, often bound with a coloured tape over the edges, to protect other clothes.
Underwear was usually stout cotton bras, sturdy knickers, and a suspender belt (or corset for those of more generous dimensions) to hook the stockings to. An underslip was usually full-length, rather than a waist slip.
There are many books on mid-century fashion, but remember: most women were not "fashion models" and wore a more toned-down version.
Any help?