William K. Vanderbilt Costume Ball [Album title page.]

Mrs. William K. Vanderbilt (neé Alva Erskine Smith)

Mr. [William Bayard] Cutting

Mr. William Jay

Mr. William Douglas

Mrs. William Douglas (neé Adelaide Townsend)

Lady Mandeville (neé Consuelo Yznaga)

Mr. H. Duncan Wood

Mrs. Sam Penniman (neé Mary Knower)

Mr. Pierre Mari [Peter Marie.]

Mr. Allen Thorndike Rice

Mr. Thorne

Miss Misier

Mr. James Otis

Mr. Charles Ross

Mr John Whipple

[Mrs Arthur Paget (née Mary (Minnie) Paran Stevens).]

Mr. Isaac Bell

Mrs. Henry Leavitt

Miss [Frederica] Belmont (later Mrs. S. S. Howland)