|Embroidered trim chemise|
The chemise pattern at left is from Peterson's magazine Dec 1960, but has no scale. The layout is based on the width of cloth, each body piece being 2 widths, but I don't know the standard width of cotton in 1860. I know fabric widths ranged from 20 and 35 inches until very recently. 22" wide seems a decent guess, given the couple existing garments I've quickly researched plus common sense.
I'll have to buy some cotton voile or other fine cotton or linen cloth, plus desired trim. A chemise like this could work belted as a dress in summer, under a corset for a Steampunk party, or just to keep cool on a summer evening.