Jack B. Morrell is a historian of science at the University of Leeds.
Between 1964 and 1994 he was lecturer and then Reader in History of Science at the University of Bradford.
Between 1978 and 1982 he was vice-president and then president of the British Society for the History of Science.
He is currently examining the relations between the professionals and amateurs who worked in Yorkshire in the early twentieth century on the geology of the county.
His main research interests are He received the 2007 Sue Tyler Friedman Medal for his work in the history of geology.