The New York Public Library Digital Collections has the following in its archives:
They appear to be scrapbook pages in which someone has cut pictures of Vernon and Irene Castle dancing, along with descriptive blocks of text, and pasted them onto individual pages. The library provides little insight into the original owner of the scrapbook. Some of the clippings may have come from a series of Ladies Home Journal articles featuring the Castles in 1914. They are also, of course, quite similar to the series produced for the Washington Times, featured lately on this blog.
The Library states that the photographs were taken by Ira L. Hill, and attributes these pages thusly:
Jerome Robbins Dance Division, The New York Public Library. “The Castle gavotte : described by Mr. Castle” The New York Public Library Digital Collections. 1920. http://digitalcollections.nypl.org/items/510d47da-5a8b-a3d9-e040-e00a18064a99
Jerome Robbins Dance Division, The New York Public Library. “The Castle gavotte : described by Mr. Castle” The New York Public Library Digital Collections. 1920. http://digitalcollections.nypl.org/items/510d47da-5a8c-a3d9-e040-e00a18064a99
Jerome Robbins Dance Division, The New York Public Library. “The Castle gavotte : described by Mr. Castle” The New York Public Library Digital Collections. 1920. http://digitalcollections.nypl.org/items/510d47da-5a8d-a3d9-e040-e00a18064a99
Jerome Robbins Dance Division, The New York Public Library. “The Castle gavotte : described by Mr. Castle” The New York Public Library Digital Collections. 1920. http://digitalcollections.nypl.org/items/510d47e3-8bb3-a3d9-e040-e00a18064a99