Here is a Pioneer chair I made patterned after one by Scott Phillips in a recent "Woodcraft" magazine. The two cross braces and sides are made of white oak and the slats are made from some redwood siding my brother gave me. Finished with some spar varnish.
Scott Phillips also shows how to make this chair in an episode of the American Woodshop on woodworkingchannel.com. He says the design came from Ireland in the early 1800's and the chair was used by the early settlers because it could easily hang on the side of wagon.
Thanks for looking.