One hundred and seventeen people, all male, were executed in the United States in 1948, eighty-nine by electrocution, twenty by gas chamber, and eight by hanging.
Irvin Mattio became the last person to be executed in the United States for a crime committed at the age of 16. Going forward, nobody else would be executed in the United States for a crime committed while under the age of sixteen. Mattio was also the last juvenile offender to be executed in Louisiana until Dalton Prejean in 1990.