From travelers411.com/forums/album.php?albumid=721&pictureid=7188.
The Ladies' dresses have trim lines and light color(s). They do no have big leg-o-mutton sleeves. Leonie may be wearing a tie.
Keywords: 1895, Jennie Jerome, Duchess of Marlborough, Leonie Jerome, Spencer family, Churchill family, Leslie family, British, ribboned hat, skimmer, chemisette, high enclosing neckline, jacket bodice, lapels, long close over-sleeves, down turned waistline, close skirt