LS-Abram Chasins. Suggestions, questionnaires, contracts, biographies and correspondence regarding Young People's Concert soloists; Programs; List of possible young soloists for YPC; Choice of soloists for YPC and rehearsal schedules; Signed consents from parents for young musicians to appear as soloists at YPC; ALS-Marcel Grandjany, harpist; Extensive correspondence between Philharmonic and young soloist and parents re appearance at YPC at either Town Hall or Carnegie Hall; LS-James Fassett