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

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

Mr. William Jay

Mr. William Douglas

Mr. [William Bayard] Cutting

Mrs. William Douglas (neé Adelaide Townsend)

Mr. H. Duncan Wood

Lady Mandeville (neé Consuelo Yznaga)

Mr. Thorne

Miss May Bird

Mrs. Peters[?]

Mr. Isaac Bell

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

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

Miss Amy Townsend

Mrs. Henry Leavitt

Mrs. E. J. Woolsey (neé Fanny Smythe)

Miss [Agnes] Binsse & Mr. [Reginald] Francklyn

Mrs. Buchanan Winthrop (neé Sarah Helen Townsend)

Mr. Buchanan Winthrop