One of the vintage children's books that I own is The Expressive Readers First Reader by Baldwin and Bender published by the American Book Company in 1911. I have scanned many of the images in the book and added them to products in my zazzle store. You can find the products with the images from the book here. I will still be adding even more of the images from the book later on. I think children's vintage books have some of the best vintage images in them.
Just an example is: