From the Leon Wilnitsky Web site. According to Leon Wilnitsky's notes, she was the wife of a Justice Wightman. She could be Mary Wightman.
The sitter shows typical formal dress for ca. 1830 and a remarkable floral headdress and comb.
Keywords: British, hurluberlu coiffure, floral headdress, comb, off shoulder vee neckline, modesty piece, pleated bodice, dual upper puffed sleeves, cuffs, natural waistline, belt, full skirt, necklace, earrings, wrap