sentences:  He was promoted to lieutenant colonel on October 23, 1862, and to colonel on June 25, 1863.Colonel Cogswell was appointed brevet brigadier general of volunteers by appointment of President Abraham Lincoln on December 12, 1864, to rank from December 15, 1864, and the appointment was confirmed by the United States Senate on February 14, 1865.Colonel and Brevet Brigadier General Cogswell was mustered out of the U.S.