Ok, I am in the UK and can confirm that various regions and trades had their own distinctive designs.I worked for some years smocking traditional childrens dresses and am willing to make garments either to a traditional design or clients own. The book mentioned several times in the forum is available on Amazon. Alice Armes English smocks and has both instructions and patterns. I have just started to do a smock for myself which will use traditional stitches but not a basic smock pattern as I intend wearing it and don't wan't to look as if I am in costume!