Bicycle Detectives do you know the Killer?

The Killer family were well established in Wirksworth, Derbyshire. But which of them owned the cycle shop with a Raleigh agency at 20 North End? As you can see, their name is on the shop transfer (decal) on my 1904 Raleigh X Frame Scorcher.

https://onlinebicyclemuseum.co.uk/1904-raleigh-x-frame…/