Board Thread:Skyrim/@comment-11549959-20130802145657/@comment-6881629-20130806171238

No the books are already in the main game Yellow Book of Riddles, The Red Book of Riddles, A Children's Anuad, and Kolb and the Dragonbut the dolls, clothes, wooden swords and more food (like boiled creme treat and taffy) are added by Hearthfire.

I'm afraid there are no orphans in Solitude with or without the DLC (unless their parents were killed during your game somehow). Hearthfires really good hide-and-seek is a bit nerve-racking at Lakeview though as theres a Necromancer very close by.