Daniel Raymond Slocum was born in LeRoy, New York, on June 21, 1887. He served with the 3rd U.S. Cavalry from August 30, 1905, until December 9, 1906. Daniel was inducted into the United States Army on February 24, 1918, and was discharged on November 30, 1918. He passed away on August 4, 1929, in Rochester, New York.
