John D. Milton

Florida Rock Industries, Inc. provides sand, gravel, and crushed stones to the construction industry. The company also manufactures concrete block, ready mix concrete, and masonry cements. It serves commercial, industrial, residential, and governmental construction companies. The company was founded in 1929 and is headquartered in Jacksonville, FL.

Patriot Transportation Holding, Inc. is engaged in the transportation and real estate businesses. The company operates its business through the following segments: Transportation, Mining Royalty Land, and Developed Property Rentals. Its Transportation business is conducted through Florida Rock & Tank Lines, Inc., which is a Southeastern transportation company concentrating in the hauling by motor carrier of liquid and dry bulk commodities. The Mining Royalty Land segment owns real estate, including construction aggregate royalty sites and parcels held for investment. The Developed Property Rentals segment acquires, constructs, and leases office/warehouse buildings primarily in the Baltimore/Northern Virginia/Washington area and holds real estate for future development or related to its developments. Patriot Transportation Holding was founded in 1986 and is headquartered in Jacksonville, FL.