Captain Maurice Maloney, like Lt. Kautz, saw combat service as an enlisted man prior to serving as a commissioned officer. Born in Ireland around 1812, Maloney entered the Army in 1836 seeing service in Florida and the Cherokee Nation.
By the time of the Mexican War in 1846, Maloney had risen to the rank of Sgt. Major. He was promoted from the ranks to 2nd Lt. on Nov. 27, 1846 and he served as the acting adjutant for the regiment for three days in September 1847.
In October 1847, Lt. Maloney was promoted to full-time adjutant for the 4th Infantry Regiment. He earned additional brevet appointments for his heroism in assaults at Molino del Rey and Chapultepec. Wounded in battle, Maloney left the war as a 1st Lt./Bvt. Captain (being promoted on May 6, 1848).
Maloney joined the 4th Infantry in its deployment to the Pacific Coast in 1853. On Nov. 22, 1854, Maloney was promoted to Captain and assigned to duty at Ft. Steilacoom. He coordinated the early reaction of Regular troops to the Indian insurgency in the summer and autumn of 1855.
With the arrival of Capt. Keyes and Lt. Col. Casey on the scene later that year, Maloney went back to company command. Maloney remained in command of Co. A/4th Infantry for the remainder of his duty in the Pacific Northwest, seeing service not only at Ft. Steilacoom, but also Camp Montgomery and Ft. Chehalis.
Capt. Maloney joined the 4th in its deployment to the East during the Civil War, but he accepted a promotion to Major in the 1st Inf’y on Sept. 16, 1862. His Regulars trained as both heavy artillery and infantry and were commended for their fighting spirit at places such as Corinth and the siege of Vicksburg. For a time, Major Maloney served as the Colonel of the 13th Wisconsin Volunteer Infantry but returned to the Regular Army by the end of the war.
On June 16, 1867, Maloney was promoted to Lt. Col. of the 16th Infantry, a position he held until being replaced by the promotion of Thomas C. English to Lt. Col. two years later. Maloney was unassigned for just over a year before he retired from the service on Dec. 15, 1870. Lt. Col. Maloney died just two years later on Jan. 8, 1872 in Green Bay, Wisconsin.