- CollectionMS 01.182 - Class of 1955 Materials
- Box1 - Untitled
- File1 - Photos, postcards, school memorabilia (stickers, flags, buttons)
- File2 - School Event Posters, Programs, Pamphlets, Grinnell Songs
- File3 - Personal Student Agendas of Mary Norelius (Class Agent)
- File4 - Newspaper clippings (Alumni S&B, S&B, Des Moines Register)
- Item5 - Class Agent Classletter Handbook
- File6 - Reunion Materials (1983, 1989, 1995, 2000)