Bury Street Mission

Slide has caption "Bury Street Mission", but no further information. Possible relevant pieces of information from British history online (http://www.british-history.ac.uk/report.aspx?compid=26943) are "Congregationalists extended their Winchmore Hill chapel in 1883 and 1913 and began missions in Bury Street in 1881", "the Brethren expanded, registering ... a room in Bury Street in 1938", "the Brethren opened a permanent chapel in Bury Street in 1951" and "Winchmore Hill chapel bought Bury Street iron mission room in 1881 and ran it as Belmont mission room until 1904".