She was the wife of a distinguished and knighted physician, Sir John Young Walker MacAlister. Her genealogical sketch is here.
From history-of-fashion.tumblr.com/post/85830757214/1912-thomas-benjamin-kennington-lady-elizabeth. Also posted to The Belle Époque Album here.
Lady Elizabeth reposes in neo-Directoire luxury with a satin dress and a dark lace over-dress in this 1912 Kennington portrait.
Keywords: 1912, Kennington, Elizabeth MacAlister, Batley family, MacAlister family, British, wavy coiffure, tiara, earrings, necklace, bodice, trapezoidal neckline, quarter length sleeves, bracelets, close skirt, lace over-dress, square décolletage, jeweled bodice ornament, gloves