Here's a colouring page of Charlotte Brontë aimed at younger children. We've also got a portrait colouring page of the three Brontë sisters.
Charlotte Bronte Colouring Page
Here's a fun Andy Warhol colouring page for younger children - with one of his most famous portraits in the background!
Younger children can enjoy colouring in this simple picture of Thomas Edison holding a light bulb as an introduction to topic work on inventors perhaps?