David W. Niven (not the British actor, a High School teacher with a Jersey accent) recorded 650 Cassette tapes of great jazz artists, together with his own commentary on the history of the tracks and artist, when each was recorded, and which musicians appeared.
The 1000+ hours, and scans of his setlists and notes are available on Archive.org: The David W. Niven Collection of Early Jazz Legends, 1921-1991 https://archive.org/details/davidwnivenjazz&tab=collection
This is an extraordinary collection. It has been Mr. Niven’s life’s work. It represents the very finest American music of the twentieth century, and because Mr. Niven took the time and care to record these commentaries, he has produced a library that is accessible to everyone from jazz aficionados to jazz novices.
This is all made even more remarkable by the fact that, had Mr. Niven not had the foresight to contact Steve Massey in 2010, this entire collection may have disappeared. How many collections of jazz like this get junked after estate sales every year?
Thank you, David–your devotion to jazz will enrich the musical education of hundreds of students! Django Reinhardt Tape 1 1935 – 1937 Side A https://archive.org/details/Django_Reinhardt_Tape_1_1935-1937