Agriculture census data (from http://www.agcensus.usda.gov) was used to create maps (like the one above for pecans) and this poster for each food item usually served at Thanksgiving by Linda Zellmer, Government Information & Data Services Librarian at Western Illinois University. Not surprisingly, Texas was tops in acres harvested (in 1997, 2002, and 2007) for those pecans that might be in your pie and other holiday recipes.
If you are traveling this holiday, have a safe trip! The library will be open until 5 PM on Wednesday, November 25, then closed Thursday through Saturday for the holidays. We reopen at noon on Sunday, November 29, when we begin extended hours for the end of the semester and finals week.