The Adams-Harris Pattern Company offers a wide variety of doll patterns for sale--sized for large, mini and tiny BJDs, Marley, Kish, Tyler, Antoinette, Ellowyne, and American Model--at reasonable prices for your home use or for resale purposes.
This site was only recently brought to my attention, and I have to say, while I'm not personally a sewer, I am really impressed by the variety of sizes and patterns available.
There is also a portion of the website that offers a free section of clothing and accessory patterns for a variety of doll sizes, including an SD-sized 1790s era shoe. I read the instructions, and it looks really well-done and easy-to-use. Please check out the website, and support it!