Series 1 – Publications of the ITA (Journal, newsletter, etc.) This series includes the quarterly I.T.A. Journal in both bound and unbound copies. Series 2 – Publications received by the ITA (alphabetically arranged)

Series 3 – Constitution and By-Laws (chronologically arranged)

Series 4 – Board of Directors Minutes (chronologically arranged)

Series 5 – Correspondence (chronologically arranged) This series consists of the official correspondence of the organization. This is grouped by presidential term of office, and includes outgoing and received correspondence by the president, as well as other officials of the ITA. Terms of office ran for two years from mid-year to mid-year with the incoming president taking office at the end of the International Trombone Workshop, usually held in June or July each year. There is significant overlap between and among the official correspondence and the files of the working committees of the Board of Directors, as well the files of Events, Photographs, Membership, Subject Files and other series. The letters were mostly left where they were found.

Series 6 – Committee Documents

Series 7 – Financial Documents

Series 8 – Membership

Series 9 – [Reserved]

Series 10 – Event Documents

Series 11 – Subject Files

Series 12 – Photographs, General These photographs are semi-processed and contain mostly group shots or candid photos taken at various events such as the ITA Workshops or regional and international competitions and festivals, such as the Boston Sackbut Festival; among other venues. Some were printed in the ITA Journal. Those which relate to a particular event, such as an earlier ITA workshop, are located with the event files in Series 10. Beginning in the 1990s, photos were filed in a rough chronological order by year, and they have been left as found except for those of easily identifiable individuals, which were moved to Series 13 – Photographs, Alphabetical. Soon after the founding of the ITA in 1972, the organization began to build a file of photographs for use in the Journal, for PR related to the annual Workshops, and other purposes. These files include photographs of individuals and groups and are arranged alphabetically. Some folders originally contained extensive correspondence, usually related to a particular event. Such correspondence has been moved to Series 5 – Events.

Series 13 – Photographs, Alphabetical These are mostly individual shots kept for possible use in promotional materials or use in the ITA Journal. There is some overlap between the General and Alpha files. These folders are not numbered due to the assumption that they will be added to from time to time. Most correspondence has been moved to Series 5 – Events if it related to an invitation to perform at an ITA Workshop or other event. Series 14 – A/V Materials These A/V materials were mostly generated at the ITA’s annual meetings and other events, such as regional competitions, performances of commissioned works, etc. They are in various formats including: reel-to-reel tapes, cassette tapes, CD, VHS tapes, etc. They are arranged in chronological order. Series 15 – Ephemera

The I.T.A. collection also contains several Special Collections. These materials comprise the papers of individuals donated to the ITA archives by family members. (Associated with the Glenn Bridges Collection is a deposit of his recording-related equipment). These special collections are:

SC 1 - Glenn D. Bridges Special Collection SC 2 – Paul T. Jackson Special Collection SC 3 – Keig Garvin Special Collection SC 4 – Neill H. Humfeld [unprocessed]