The earlier GER Class F48 were built between 1900 and 1903 and had round-top boilers; there were sixty of them. The G58 had Belpaire fireboxes, like those fitted to the F48 No. 1189, and later fitted to the Class D56Claud Hamilton 4-4-0s. A further thirty of the Belpaire boiler type followed to form Class G58.
All the J16s had been rebuilt as J17s by 1932 and 89 J17s passed to British Railways (BR) in 1948. BR numbers were 65500–65589, of which 65500–59 were the rebuilds from F48 (J16). One number (65550) was blank, because locomotive no. 8200 had been destroyed in a German V-2 rocket explosion at Stratford in November 1944. The second locomotive was withdrawn in 1953, and the last in 1962.
Aldrich, C. Langley (1969). The Locomotives of the Great Eastern Railway 1862–1962 (7th ed.). Wickford, Essex: C. Langley Aldrich. OCLC30278831.
Baxter, Bertram (2012). Baxter, David; Mitchell, Peter, eds. British Locomotive Catalogue 1825–1923, Volume 6: Great Eastern Railway, North British Railway, Great North of Scotland Railway, Midland & Great Northern Joint Railway, remaining companies in the LNER group. Southampton: Kestrel Railway Books. ISBN978-1-905505-26-5.
Fry, E. V., ed. (September 1966). Locomotives of the L.N.E.R., Part 5: Tender Engines—Classes J1 to J37. Kenilworth: RCTS. ISBN0-901115-12-6.
Ian Allan ABC of British Railways Locomotives, 1948 edition, part 4, page 41