This website has book selections which are categorized by historical time period/topic. This site is a great resources to quickly find read aloud books for your class to connect social studies and language arts.
Non-Fiction Children Books About African Americans
First Grade Schoolhouse: What is Your Prediction? Do Not Open This Book! by Joy Cowley is a wonderful big book to promote the love of reading. It can be used to introduce making predictions and works well for shared reading.
10 Authors for Elementary School Social Studies Teachers to Know from Delightful Children's Books. This is a list of great elementary social studies authors that all would be great resources for the elementary social studies class.