What is Cracker architecture?
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http://www.oldhouseweb.com/stories/Detailed/12106.shtml
In its simplest form, a Cracker house is a wooden shelter built by the early Florida and Georgia settlers. Lured to Florida by cheap and plentiful land, these pioneers arrived with few provisions and needed to erect shelter quickly and cheaply. The brush provided abundant supplies of cedar and cypress. Rocks or bricks made of oyster shell and lime served as pilings to keep the shelters off the ground. A wide shade porch wasn't just an embellishment. In pre-air-conditioned Florida, the porches provided relief from the relentless sun.