Here is an interesting look at the history of the grocery biz in Arizona (this dates from around 1999-2000...so there have been a number of changes)
http://www.afmaaz.org/history/AFMA_Article.pdf
The longest operating national retailer in AZ has been Safeway...who came here by buying the Pay N Takit chain in the 20s (the shell of one of their stores is standing in Jerome)
