John Gasquet gained fame on May 23, 1934, when he was the first photographer to photograph the bodies of famed outlaws Bonnie Parker and Clyde Barrow after they were ambushed near Gibsland in Bienville Parish. During his fifty years as a photographer, Gasquet also photographed seven presidents and such celebrities as Babe Ruth, Jack Dempsey, Charles Lindbergh and Will Rogers. He is also famous for his images of the 1928 hurricane that devastated St. Petersburg, Florida, and for the 1937 New London, Texas, school explosion that killed 399 persons. He spent the final years of his career as a photographer for the Louisiana Division of Administration and the State Division of Commerce and Industry.
John Gasquet retired from state service in 1971 but not before he had assembled an impressive photographic portfolio of Louisiana's people, flora, fauna, plantation homes, and festivals. The Gasquet family donated 4,000 negatives and photographs to the Louisiana State Archives in 1993.