[3] The amateur team continued independently as they were considered a separate club by the Rugby Football Union.

[4] London Welsh Amateur were founded in the 1990s after London Welsh reached the top of National League 1 and decided to split the club to separate the professional wing from the community club.

[6] In 2017, London Welsh were expelled from the RFU Championship and later liquidated due to debt.

They also stated that they would remain amateur despite inheriting the liquidated professional club's infrastructure.

[2] At the end of the 2017–18 season they finished as champions of Herts/Middlesex 1 and gained promotion to London 3 North West.