Charles R. Jennison

Charles Rainsford Jennison also known as "Doc" Jennison (June 6, 1834 – June 21, 1884) was a member of the anti-slavery group during Bleeding Kansas. He was also a famous Jayhawker, and a member of the Kansas State Senate in the 1870s. He later served as a Union colonel and as a leader of Jayhawker militias during the American Civil War.
Early life and Bleeding Kansas.
Charles R. Jennison was born on June 6, 1834 in Antwerp, Jefferson County, New York. His family moved to Wisconsin in 1846 where Jennison studied medicine. Marrying at 20 years old, Dr. Jennison moved to Osawatomie, Kansas in 1858 and to Mound City, Kansas shortly thereafter. Jennison was considered the most brutal jayhawkers. Whereas some other importnat leaders of irregulars in the Bleeding Kansas border conflict shared these traits, Jennison was different because he plundered for personal gain. Jennison worked with James Montgomery in opposing pro-slavery settlers and irregulars believed to be working with Border Ruffians.
Civil War.
Even before the start of the war, Jennison became a captain of the Mound City Guards on February 19, 1861.
After the war.
Jennison was elected to the Kansas Legislature from Leavenworth County in 1865, re-elected in 1867, and elected to the Kansas State Senate in 1872. He died at Leavenworth, Kansas June 21, 1884.