Approximately 1,500 photographs and 1,000 manuscript pages document the joint acting and dancing careers of Irene and Vernon Castle (1911–1917) and Irene’s life and career after Vernon’s death (1918-1969).

Scrapbooks; photograph album; photographs of Marie Powers in starring roles, autographed photographs of co-stars, personal photographs, and some negatives; bronze medallion; books, including one autographed by Helen Hayes; broadsides; playbills; programs; correspondence; clippings; and articles.

Playbills organized in approximately 250 binders from various Broadway productions attended by Michael McCarthy. Included in the binders are clippings reviewing the productions and ticket stubs.

Mostly theater playbills and programs; also some miscellaneous theater-related items.