You can get all of hodgson burnett on kindle, so a little princess, little lord fauntleroy, the making if a marchioness.
The Emily books by lm Montgomery too.
Jane eyre
Sherlock Holmes
The father brown stories.
Kipling, the just so stories, the mowgli stories, plain tales from the hills, puck of pooks hill and rewards and fairies ( quite like e nesbit, same period)
Arthur Ransome ( I haven't checked)
Pollyanna is on there, so is what Katy did, and Rebecca if sunnybrook farm afair. All classics.
Little women, good wives, little men, Jo's boys.
Haven't looked for but I enjoyed 3 men in a boat at her age.
Black beauty.
Treasure island, catriona
The 39 steps and Greenmantle, Huntingtower
Not sure how expensive the little white horse is, and the rosemary sutcliffs. The eagle of the 9 th us the one to start with...
Nearly all the others I have quoted are free ( I've got them....).