I just mailed 5 books yesterday and when I get my points I hope to order some patriotic children's books.  If they are on your bookshelf, please post here or send a pm.  I already have America and A is for Abigal by Lynne Cheney.   I'm interested in biographies of founding fathers especially those from Virginia like Patrick Henry or George Mason.

Jean Fritz is a fantastic author for what you are looking for.  Just about anything by her is going to be related to founding fathers.  Also, So You Want to be President? is a good book.  Good luck with it!