The collection consists of three main series of materials that supplement other cataloged holdings relating to Mary Aldis, her family, her estate, her literary work, and her Lake Forest Players/Playhouse.  The first series consists of a small group of five large format photographs, plus one smaller view, of plays at her playhouse.  The second series is a collection of unpublished translations of French one-act plays, written for production and acting by amateurs.  The third series is a reel of microfilm of two scrapbooks of the Aldis Playhouse, the originals held by the Chicago History Museum.