American Cookery by Amelia Simmons was the first published cookbook in America. Reprints are easy to find now.
I have a small collection of vintage cookbooks My favorites are (no particular order)
1.White Trash Cooking by Earnest M. Mickler
2. Stories and Recipes of the Great Depression of the 1930's by Janet Van Amber Paske
3. The American Frugal Housewife By Mrs. Child
4. More with Less Cookbook for Mennonites on how to eat better and consume less by Doris Janzen Longacre.
5.Aunt Jenny's Favorite Recipes ( a booklet from a shortening company)