William Butler was an Air Force captain who spent 5 1/2 years as a prisoner of war in North Vietnam – some of it in the infamous “Hanoi Hilton” – before returning home to Calistoga to become a veterinarian who dedicated his life to helping fellow veterans and others in need.

The Vietnam-Era Prisoner-of-War/Missing-in-Action Database
This database is designed to assist researchers in accessing U.S. government documents related to American military personnel who are unaccounted for from the Vietnam War. The formal title of this collection is “Correlated and Uncorrelated Information Relating to Missing Americans in Southeast Asia.” The Defense POW/MIA Accounting Agency (DPAA; formerly