Turner Grain Officers No Longer Principals in Related Company by Mark Friedman Posted 8/22/2014 11:35 am Updated 3 years ago Two of the top officers at Turner Grain Merchandising Inc. of Brinkley are no longer listed as principals in a related company, according to the National Futures Association. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access stories older than 15 days. Purchase Now Already have archive access? Login to view this article.