Institutional processes associated with technological innovation in the library context and the key transformative event, the completion of the National Digital Library Program (NDLP) at the Library of Congress (1995-2000), are discussed in this article and the accompanying article, Part I. Interviews with seven key participants of the program conducted in 2002 at the Library of Congress (with policy makers and digital library developers) are interpreted here in terms of loci of control (external/internal) shaping the process of innovation and its institutionalization--the coercive and normative pressures of society, and the professional field of librarianship. Their perceptions are synthesized into a realist narrative in which their voices are still recognizable. Their tales of development show that organizational change driven by external forces and involving individuals who crossed boundaries of organizational fields can be very successful in forcing organizational isomorphism and integration of digitization in the library processes. The accompanying article, Part I, presents theories of social change and organizational rationality, and the social construction of technology (SCOT) as well as the methodological framework for this phenomenological study. [For Part I, see EJ875918.]