SIPC: subsequent careers of SIPC pianists: correspondence and publicity material, 1983-89 Box 68 Unit ID: 505 Date: 1983-89
SIPC: transcript of an interview of Hobcroft by Carolyn Benn for the Friends of SIPC, 1988 Box 64 Unit ID: 484 Date: 1988
SIPC: Virginia Braden Arts Management: correspondence and list of artists, 1982-86 Box 64 Unit ID: 478 Date: 1982-86