I developed this particular pattern from Simplicity Pattern #9742 (now Simplicity Pattern #3725) for my merchandise line.  They come in sizes 8, 10, 12 & 14.  All sizes include a chemise - with adjustable neck and sleeve openings, a petticoat - in coordinating material, a pinner apron in white cotton, an adjustable cap - also in white cotton, and a matching pocket.  A stomacher and decorated straw hat were included with the dress pictured, but these are not standard items and cost extra if requested.  The pictures show how the pocket is worn over the chemise, with the slit positioned on one hip to allow for access to the pocket once the petticoat is put on.  There are corresponding slits on each side of the petticoat which allow for the pocket to be worn on either the right or left side, whichever is preferred.  Since women/girls did not carry purses at this time in history, the pocket allowed a lady to stash small items away on her person (money, etc).  Today they serve as a great way to hide modern items, like chapstick and cell phones away from the public eye.  The petticoat is then tied first in the front, and then in the back using the ribbon.  The gown is then laced over the chemise, petticoat, and stomacher (if present) and the ties are gathered up through the loops under the gown's skirt.  There is not an exact method to tying up the loops, but grosgrain ribbon is the best to use as it does not slip like regular satin ribbon.  The apron is then tied around the waist and pinned directly to the front of the gown using straight pins and served as a way to protect the gown from dirt when working.  The cap is plain white cotton and is adjustable along the bottom back and was worn in order to keep the hair clean.  The last photos shows my niece in her new outfit and you can clearly see the white cotton cap.