From the State Library of Florida’s online Flickr collection
This photo was taken at the Royal Poinciana Hotel in Palm Beach, Florida March 14, 1896. Pictured in the photograph are Left to Right: Colonel Philip M. Lydig, Miss Helen Morton, Miss Gladys Vanderbilt, Miss Amy Townsend, Captain A.T. Rose, Mrs. Cornelius Vanderbilt, Miss Edith Bishop, Miss Mabel Gerry, Thomas Cushing, Edward Livingston, Dudley Winthrop, Craig Wadsworth, Miss Gertrude Vanderbilt, Lispenard Stewart, Harry P. Whitney, Miss Sybil Sherman, Cornelius Vanderbilt.
Mrs. Cornelius Vanderbilt would be Alice Claypoole Gywnne – her daughters Gladys & Gertrude are also here. Several months later, Gertrude & Harry would marry. I’m not sure which Cornelius this is in the photo, but maybe her son Cornelius?