[3] Lancaster made notable achievements with early online retrieval systems, including evaluation studies of MEDLARS.
He published broadly in library and information science over a period of four decades and continuously emerged as a visionary leader in the field, where research, writing, and teaching earned him the highest honors in the profession.
[4] Lancaster worked as the technical librarian for Babcock & Wilcox from 1960 until he returned to the U.K. in 1962 to become a senior research assistant at ASLIB in London.
[10] Lancaster participated in many international conferences and lecture series in Australia; Brazil; Canada; China; Colombia; Costa Rica; Denmark; Egypt; England; Finland; France; Germany; Guatemala; Hong Kong; India; Israel; Italy; Mexico; Namibia; the Netherlands; Norway; Poland; Portugal; Singapore; South Africa; Spain; Sri Lanka; Sweden; Syria; Taiwan; Tunisia; Turkey; and the West Indies.
In 1975 he edited the proceedings of the NATO Advanced Study Institute on the evaluation and scientific management of libraries and information centers.
[11] He was a Fulbright professor at the Indian Statistical Institute (1991); in Denmark at the Royal School of Librarianship, (1985); and in Brazil at the Instituto Brasileiro de Informacao em Ciencia e Technologia, (1975).
[13] He "introduced new approaches to education for information science expressed in a range of courses that were designed to prepare his students for a new kind of professional world that was in the making and to developments in which he was especially attuned".