William K. Vanderbilt Costume Ball [Album title page.]
Mrs. William K. Vanderbilt (neé Alva Erskine Smith)
Mr. William Douglas
Mr. William Jay
Mrs. William Douglas (neé Adelaide Townsend)
Mr. [William Bayard] Cutting
Mr. H. Duncan Wood
Lady Mandeville (neé Consuelo Yznaga)
Mrs. Peters[?]
Miss May Bird
Mr. Thorne
Miss [Agnes] Binsse & Mr. [Reginald] Francklyn
Mr. Buchanan Winthrop
Mrs. Buchanan Winthrop (neé Sarah Helen Townsend)
Miss Amy Townsend
Mrs. Henry Leavitt
Miss [Frederica] Belmont (later Mrs. S. S. Howland)
Mr. Isaac Bell
[Mrs Arthur Paget (née Mary (Minnie) Paran Stevens).]
Miss Whiting (later Mrs. Oliver Hazard Perry Belmont and Mrs. George Rives)