It looks like the Macready has one outfit. They could be two separate
sets of clothes, worn at different times, but it's possible she
wears the coat over the off-white dress.
When Mrs. Macready picks the children up from the train station,
she wears a tan jacket with notched lapel and buttoned sleeves.
The fabric looks like it has a thin stripe pattern. She wears black
gloves and a scarf, tucked under the jacket. Her hair is worn in
a tight bun, topped with a brown hat.
The off-white skirt could be worn later without jacket, seen as
an off-white cotton dress. It appears to be a light print. A belt
slips through a loop in the center front waist, possibly of the
same fabric. Three large red buttons go up the front of the bodice,
below a wide, pointed flat collar. The length seems to be mid-calf.
Over that she wears a rather worn-looking brown button-up sweater,
with a large patch for a pocket, with eleven or twelve buttons.
Our guess is she wears the dress under the jacket when out and
about in the cart, and dons the sweater in the house.