In April 2010, the chairman of the Prince William County Board of Supervisors stood at a public meeting and thanked Donnie Hylton and his wife by name. The Hyltons had pledged 67 acres along Interstate 95 to the National Museum of Americans in Wartime. The thanks are on video.

In October 2011, the Hylton Foundation made a handshake commitment at the museum’s groundbreaking. In October 2012, Donnie Hylton III signed a written pledge calling the donation unconditional. In December 2020, Conrad Hylton, by then leading the foundation, sent a written confirmation letter to the museum’s auditors stating that the pledges had no restrictions or conditions. Four affirmations in writing, across a decade and a half.