For the reference files of anyone that desires a head to toe SHTF wardrobe this link if to the resources of Florida State University anthropology department. They have documented both artifacts and the traditional clothing of the Seminole Indians that resided in their state.
The Seminole were a conglomerate tribe made up of local natives, refugee Creek Indians after the relocation and escaped slaves from the southernmost plantations.
The U.S. government fought two wars with the Seminole and they are the only tribe that never signed a peace treaty surrendering their lands to the government.
They did sign a halt of aggression agreement back in the 1980s so they could get approval for casino gambling on their reservations.
Many still live a traditional life for part of the year, when they are not collecting tourist dollars for attendance of traditional events during the season.
These patterns and instructions are for construction of very simple clothing that is as serviceable in the field today as it was 200 years ago.
http://www.nativetech.org/seminole/index.php