Her article in thepeerage is here. A genealogical sketch is here.
From artuk.org. Also posted to the “Early” “Victorian” - 1837 to 1869 Album here.
Lady Laura Cecilia Parker wears an under-stated dress and abundant, but subdued, jewelry in this portrait.
Keywords: Laura Cecilia Parker, Laura Cecilia MacDonnell, Countess of Antrim, Parker family, MacDonnell family, Countess, British, straight coiffure, floral headdress, earrings, necklace, fitted bodice, modesty piece, off shoulder vee neckline, pleated bertha, brooch, bracelets, rings, vee waistline, brooch, full skirt, fur-edged wrap, handkerchief, fan