Barker was born in
St Helens, Lancashire, England on 19 July 1923. After schooling in the area, he studied at the
University of Oxford, obtaining a first-class degree in
Modern History from
Jesus College, Oxford in 1948. He obtained a doctorate from the
University of Manchester in 1951, on the 19th century history of St Helens. This led to his first book, co-written with a school contemporary, John Harris, who had been researching St Helens in the 18th century.
A Merseyside Town in the Industrial Revolution (1954) was influential in the emerging field of urban history. After teaching at the
University of Aberdeen for 1 year, Barker taught at the
London School of Economics between 1953 and 1964, when he became Professor of Economic and Social History at the newly established
University of Kent. In 1976, he returned to the LSE and retired in 1983. He died on 22 November 2001. ==Works==