Born on July 22, 1839, at
Fountain Green,
Hancock county, Illinois of
Scotch-Irish ancestry, he attended public schools near his father's farm. He graduated with honors from
Monmouth College in Illinois in 1860. In 1862 he was mustered as
Major and participated in the expedition to
Vicksburg. He mustered out as Paymaster in October 1865. He campaigned for the re-election of U.S. President
Abraham Lincoln before starting his life's work as a warden and penal reformer. In August 1874, he was appointed warden of the
Illinois State Penitentiary at
Joliet. Fourteen years later he was invited to open and organize the Pennsylvania Industrial Reformatory at Huntington. In August 1893, he was made Superintendent of the Illinois State Reformatory at Pontiac followed by a return to Joliet as warden there in March 1897. On July 1, 1899, U.S. President
William McKinley personally solicited him to be warden of the United States Penitentiary in
Leavenworth,
Kansas where he served until June 30, 1913. He was a pioneer "in creating reliable identification records systems and was ready to implement and evaluate new techniques as they became available. McClaughry was the first person to introduce Bertillonage into the United States in 1887… and he persuaded the Warden's Association of the United States and Canada to adopt the system in the same year." A
Presbyterian, McClaughry died in Chicago on November 9, 1920. His body was transferred to Monmouth, Illinois for interment where services were held by The Rev. Dr.
Thomas Hanna McMichael, President of Monmouth College, on Nov. 20, 1920. == References ==