Annual Report for 1993-94 to NYSED from ACS in Ithaca on "Graduation By Exhibition" variances -- an assessment of progress toward learner outcome prepared by Dave Lehman, principal, 1994, Box: 58, Folder: 7. David Lehman's Alternative Community School records, 6901. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/971678 Accessed September 25, 2026.