They were reboilered between 1889 and 1912. The Macallan variable blastpipe was removed from 1924. They ran as 2-4-0Ts on the Fenchurch Street to Blackwall service and were sometimes known as Blackwall Tanks. They operated on the Stoke Ferry, Eye and Mid-Suffolk Light Railway branches. Withdrawals started in 1930, and by 1937 fifteen had been withdrawn, but there were no more retirements for ten years. In 1944 the five surviving locomotives were renumbered 8211–8215 in order of construction. These last five were withdrawn between 1947 and 1956, when the class became extinct.
Aldrich, C. Langley (1969). The Locomotives of the Great Eastern Railway 1862–1962 (7th ed.). Wickford, Essex: C. Langley Aldrich. OCLC30278831.
Allen, D. W.; Boddy, M. G.; Brown, W. A.; Fry, E. V.; Hennigan, W.; Manners, F.; Neve, E.; Proud, P.; Roundthwaite, T. E.; Tee, D. F.; Yeadon, W. B. (August 1983) . Fry, E. V., ed. Locomotives of the L.N.E.R., part 8A: Tank Engines - Classes J50 to J70. Kenilworth: RCTS. ISBN0-901115-05-3.