Janice Bluestein Longone Culinary Archive (via HathiTrust)
An online collection of books from the HathiTrust Digital Library. It covers "areas in American domestic and commercial life in the 18th, 19th, and early 20th centuries. Far more than just cookbooks, it contains a wide diversity of materials from the 16th to early 20th centuries - books, ephemera, menus, magazines, graphics, maps, manuscripts, diaries, letters, catalogues, advertisements, and reference works - and is increasingly recognized as a premier collection for the study of culinary Americana"
The original archive is located at the University of Michigan's Clements Library (http://www.clements.umich.edu/longone-archive.php)