Official No. 135920.
Owners: 1916 North Eastern Railway Co (York) West Hartlepool; 1923 London & North Eastern Railway, West Hartlepool; November 1941 MOWT (managers Lawson-Batey Tugs Ltd); November 1942 London & North Eastern Railway, West Hartlepool; January 1948 British Transport Commission; 1949 British Transport Docks Board.