 The railways were slow to recover from the wartime hardships, and in 1921 there were six passenger trains to and from Amlwch, and only 18 single trips by the motor train.In 1923 Britain's numerous railway companies were grouped into the "Big Four", and the LNWR's assets became part of the London, Midland and Scottish Railway (LMS).Holland Arms' functionality as a staff station was only useful for the Red Wharf Bay branch, but a signalman was still required for all Amlwch services.