Bob Groh dies in plane crash
November 8, 2013 | News
President of Wisconsin-based Geo-Synthetics LLC Robert (Bob) Groh, 64, president of a Geo-Synthetics LLC, Waukesha, Wis., was killed in the crash of a single-engine plane near Kirksville, Mo., Tuesday night, Nov. 5. Groh was flying back to Wisconsin from a Colorado business trip with James Quinn, 66…