Arrangement
The collection is divided into eleven series.
Series 1: Background/Biographical Materials, 1925-1996
Series 2: Business Files, 1918-1997
Subseries 2.1: Messmore and Damon, Inc., 1918-1988
Subseries 2.2: Messmore, Inc., 1971-1989
Series 3: Patents, 1892-1952
Series 4: Projects/Exhibitions, 1924-1997
Series 5: Parades, 1960-1997
Series 6: Product Literature, circa 1930s-1992
Series 7: Heart Patient Simulator Materials, 1977-1998
Series 8: Scrapbooks, 1925-1947
Series 9: Photographs, 1900-1997
Subseries 9.1: Family, 1900-1997
Subseries 9.2: Subjects, 1930-1995
Subseries 9.3: Chronological, 1957-1985
Subseries 9.4: Ephemera, undated
Subseries 9.5: Postcards, undated
Subseries 9.6: Negatives, undated
Series 10: Oversize Materials, 1930-1989
Series 11: Audiovisual Materials, 1933-1937, 1997
Subseries 11.1: Audio Discs, 1933-1937
Subseries 11.2: Moving Image, 1997