There is so such organization. You might mean the American Folklore Society
or the American Folklife Center (part of LoC - where ARSC Presidenmt Matt
Barton is an archivist)
In a message dated 8/22/2016 6:02:48 P.M. Eastern Daylight Time,
[log in to unmask] writes:
Someone at the American Folkmusic Society should know about the Coffin
material. Unfortunately Archie Green and Judith McCulloh are both gone.
They would have had intimate knowledge of the program.