A genealogical sketch of her is here.
From bbc.co; shadows filled in to bring out details of coiffure and dress.
Shoulders are becoming more pronounced, warranting some sort of shoulder cover, as seen in this Legrand portrait of Lady Webster.
Keywords: Legrand, Charlotte Webster, Adamson family, Webster family, British, curly coiffure, hat, off shoulder straight neckline, modesty piece, epaulettes, dual upper puffed sleeves, waist band, Empire low waistline, A-line skirt, earrings, jeweled bodice ornament, bracelets