I located some very good information on Company D on the US Army Center of Military History website under the heading of Unit History. The address for the site is www.army.mil/cmh/ it is a real interesting site to visit and just look around, once you get to the site click on the Unit History button and it will take you to the Force Structure and Unit History Branch. Once there look under the heading of Organizational History and you find the Lineage and Honors for active TOE Army units, click on this and then you can look up the Hawks via the Aviation section. The Lineage and Honors will be correct but I believe that the Hawks are now assigned to the 159th Aviation Regiment.