The T19s was similar to the
Worsdell Class G14, but had a slightly larger
boiler. One hundred and ten locomotives were constructed. They had
cylinders and the last ten had boilers, but the remainder were gradually fitted with
two-ring boilers. No. 758 was fitted with an extended
smokebox in 1900.
Oil burning apparatus was fitted to No. 712 and 759–767. No. 760 was named
Petrolea. Tenders with water scoops were fitted to Nos. 762–767 and 1030–1039 to enable the
Cromer expresses to run non-stop from
Liverpool Street to from 1 July 1897.
Water troughs were installed near in 1896, and at Halifax Junction (just south of ) in 1897.
Royal trains No. 755 hauled the funeral train for the late
Prince Albert Victor, Duke of Clarence and Avondale from
King's Lynn to
Windsor on 28 January 1892. No. 761 hauled the honeymoon train for the late prince's brother and former fiancée the
Duke and
Duchess of York (later
George V and
Queen Mary) from
Liverpool Street to King's Lynn on 6 July 1893. 81 were rebuilt at the beginning of the 20th century. The remaining 29 were scrapped between 1908 and 1913. =="Humpty Dumpty" 2-4-0s==