The Supreme Court's online collection includes joint appendices beginning in January 1979, with some selected joint-appendix coverage dating back to 1936.
Sources
- Where to Find Briefs of the Supreme Court of the U.S. (supremecourt.gov)
- https://lawlibguides.luc.edu/c.php?g=610793&p=4239506 (lawlibguides.luc.edu)
- https://guides.law.stanford.edu/c.php?g=676062&p=4776722 (guides.law.stanford.edu)
- https://guides.tricolib.brynmawr.edu/c.php?g=285494&p=1904404 (guides.tricolib.brynmawr.edu)
- https://libguides.law.umn.edu/caserecords/ussct (libguides.law.umn.edu)