In 1999, Thompson and Colburn received the Peace Abbey Courage of Conscience Award. Later that year, both men served as co-chairs of STONEWALK, a group who pulled a one-ton rock engraved "Unknown Civilians Killed in War" from Boston to Arlington National Cemetery. In 2010, the Hugh Thompson Foundation was chartered in memory of Thompson's courage in halting the massacre. His biography "The Forgotten Hero of My Lai: The Hugh Thompson Story" by Trent Angers was included on the U.S. Army Chief of Staff's professional reading list.