[7] After his term ended, Lighthizer served as the Secretary of Transportation to Governor William Donald Schaefer from 1991 to 1995.

Between 1991 and 2014, the programs Lighthizer initiated and championed protected 8,700 acres on 61 properties near the Antietam National Battlefield, as well as additional acreage at other Maryland battlegrounds.

[16] In 2019, the Trust received its 10th consecutive four-star rating from Charity Navigator, which evaluates non-profit organizations for fiscal stability, responsibility and performance.

[17] Only two percent of non-profits have attained a four-star rating from Charity Navigator for as many as nine consecutive years.

[18] Lighthizer received the National Humanities Medal in a White House ceremony on January 13, 2021.