This dress is based on an old picture that I found of a milltown era dress. This would have been a dress that girls wore to work at the mills or factories that they spent their day at. Kirsten doesn't work at a mill in the city, so this dress is too fancy for her daily farm chores, but it is a nice dress for her to wear to sewing circles or other gatherings.
Kirsten Larson's Dresses:
She likes to give them special names to describe what she wears them for, like her "garden dress" and her "cow milking dress."