Founded in May 1895, from the ashes of Clapton-based club Orion Gymnasium, Norsemen (or rather, given their remote location in the growing London area – "The Northmen" as they were originally called) played their first game on 28 September 1895, beating Druids 2–1 in Neasden.

In 1974, Norsemen were promoted back to the top tier of the Southern Amateur League.

In 1978, the club entered the FA Vase for the first time, losing 4–3 against Swanley Town F.C.

In the 1982–83 edition of the FA Vase, Norsemen reached the third round, their furthest run in the competition.

Upon the formation of the club, Norsemen played behind the Cross Keys public house in Edmonton Green.