The ECR did complete the line north through to a junction with its main line from London to Cambridge in 1852 and initially ran services on the R&HR, but they later gave way to the Great Northern Railway when its lease of the Royston company expired in 1866.
In 1852, the ECR completed a line north that connected with its main line from London to Cambridge. Initially, it ran services on the R&HR, but this responsibility was transferred to the Great Northern Railway when the lease for the Royston company expired in 1866.