Honor Blackman (Avengers, Bond movie Goldfinger) was a 15 year old dispatch rider in WW2!

During World War II, at the age of 15, Honor became a motorcycle dispatch rider for Britain’s Home Office. She helped play a crucial role in the war effort delivering vital information and messages between headquarters and remote field units. “I was only just old enough to ride a bike and my mother was terrified, but I thought it was heaven. It was pretty dangerous because we were in the midst of war and had to mask the headlights during the blackout. Bombs were falling, but the roar of the motorbike engine used to drown out the sound of the doodlebugs (the German V1 rocket bombs) so we never heard them coming. It seemed terribly exciting to me.”

https://eatsleepride.com/stories/pussy_galore_aka_honor_blackman_served_as_a_motorcycle_dispatch_rider_in_world_war_ii_-319469

She studied part time while holding down a clerical job in the Home Office, and, with war raging, also worked as a motor cycle dispatch rider.

https://www.bbc.com/news/entertainment-arts-11162866

An RFC-RAF despatch rider working on her Phelon & Moore 498cc side-valve motorcycle during WWI

https://www.facebook.com/photo/?fbid=10221904539142819&set=a.1617402035143

Signals Dispatch Rider on his Triumph 550 Model H at Maresfield Camp, East Sussex, ca 1914.

From a WW1 and WW2 military bike and bicycle facebook page https://www.facebook.com/groups/BadTeethNoBarMilitaryBicycles/permalink/2571886739698647/