Complex sentence: Thomas Humphrey Cushing (November, 1755--October 19,1822) was an officer in the United States Army who served as Adjutant General of the U.S. Army from 1797 to 1798 (acting), 1800 to 1807, and 1812 to 1813.
Split into simpler sentences: Thomas Humphrey Cushing (November, 1755--October 19,1822) was an officer in the United States Army. Cushing served as Adjutant General of the U.S. Army from 1797 to 1798 (acting), 1800 to 1807, and 1812 to 1813.