She married Jennie Jerome’s son Winston, seen here with Consuelo Vanderbilt. I recall hearing she almost gave up on timid, at least in her case, Winston proposing to her.
Few good photos of her exist from before World War I, presumably because they were just another pair of aristocrats. Her husband was disgraced by the disastrous amphibious landings at Gallipoli in Turkey (near where ancient Mycenaean Greeks assaulted Troy) that he backed. Photos of her when she was older and married to PM Winston Churchill are much more abundant.
Her Wikipedia article is here.
