Looking for information on WWII Boy Soldiers in the Royal Engineers

Hi everyone,

I'm hoping someone out here can help me out here. A friend's WWII reenacting unit has a fair few kids in it and they were discussing doing a presentation on WWII Boy Soldiers focusing in the RE as that's what the rest of the unit is doing. Specifically we're looking for details of the apprenticeship programs, length of training in wartime, and photos of the uniforms (we've found references to Service Dress, Battle Dress and Denims all being used in WWII so we're a tad confused on that score).

Any help would be greatly appreciated!

Thanks in advance