The trainbearer is most well-known for his appearance each day that the House sits as part of the Speaker’s procession to the Chamber.
Little to nothing is known about the origins of the role of trainbearer to the Speaker.
It has been suggested that the historical dangers of the Speakership are the reason for the Speaker’s procession. The Speaker leaves Speaker’s House at the Westminster Bridge end of the Palace of Westminster preceded by a Bar Doorkeeper, the Serjeant at Arms with the Mace, and followed by the Trainbearer, Chaplain and Secretary.
They undertake a formal procession through the Library Corridor, the Lower Waiting Hall, Central and Members' Lobbies to the Chamber before each sitting of the House.
This route was adopted during the Second World War when the Commons used the House of Lords Chamber after their own had been destroyed. This daily procession has been retained in preference to the shorter pre-war route so that visitors in Central Lobby can witness the ceremony.
The Trainbearer wears traditional black court dress as his uniform.