JR's last day of race trials -drive north (cup trials), April 1992

JR's last day of race trials -drive north (cup trials), April 1992, Box: 30, Folder: 21. Robinson-Clapp family archives, RH MS 578. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/579735 Accessed January 23, 2026.