Great deal op!
Great reference, tons of great stuff. Though the first one that I downloaded "Mother ,Goose nursery rhymes", from 1877, Publisher London : George Routledge and Sons, the Broadway, has some shocking prejudices,which were the norms then, adult supervision may be required now.
My kids are too old, but its still nice to see books in their original format in this modern world dont you think? (nerd)
Great find OP! Really handy for those us with kids ... Heat from me <3