He served in the Spanish–American War of 1898. By January 25, 1904, he was a chief carpenter"s mate on the United States Ship Raleigh (C-8). On that day, he rescued several shipmates who had been overcome by turpentine fumes in a double bottom compartment.
Serving on board the United States.S. Raleigh, for heroism in rescuing shipmates overcome in double bottoms by fumes of turpentine, 25 January 1904.
After his military service, Klein lived for several decades in Shanghai, China. He died there at age 83 on November 29, 1931.