1806 Two Ladies In Empire style White Dresses, French. Costumes Anglais et Française, or English and French Costumes. Both with brown gloves and straw hats, one with blue shawl and other with blue Spencer and interesting blue trim. Fashion Plate via Journal des Dames et des Modes, or Costume Parisien.

Definition Empire Style Dress:  Named after the First Empire in France. Empire dresses had a low neckline and skirts started directly under the bust and flowed into the classical relaxed wide styles of Greece and Rome. This style of dress is associated with Jane Austen and her contemporaries as a high-waisted dress was worn most days. Cotton, silk or taffeta were the popular fabrics.

Definition Spencer: Short jacket, cropped at the waist, worn over a dress, or gown. These close-fitting, tight sleeved, waist length jackets were modeled on a gentleman’s riding coat, but without tails. Delicate and regency dresses provided so little protection from the cold, so over garments were essential for warmth, modesty and good health.