John Sedgwick - Early Life

Early Life

Sedgwick was born in the Litchfield Hills town of Cornwall, Connecticut. He was named after his grandfather, John Sedgwick (brother of Theodore Sedgwick), an American Revolutionary War general who served with George Washington. After teaching for two years, he attended the United States Military Academy, graduated in 1837 ranked 24th of 50, and was commissioned a second lieutenant in the U.S. Army's artillery branch. He fought in the Seminole Wars and received two brevet promotions in the Mexican-American War, to captain for Contreras and Churubusco, and to major for Chapultepec. After returning from Mexico he transferred to the cavalry and served in Kansas, in the Utah War, and in the Indian Wars, participating in 1857 in a punitive expedition against the Cheyenne.

In the summer and fall of 1860 Sedgwick commanded an expedition to establish a new fort on the Platte River in what is now Colorado. He was greatly handicapped with the non-delivery of expected supplies which were to be forwarded by wagon-train from the nearest fort in Kansas, but managed to erect comfortable quarters for his men before cold weather set in. These buildings were constructed largely of stone with timber for roofs and doors. It is difficult to realize the remoteness of this post but there were no railroads west of the Mississippi River and communication with St. Louis and Kansas City was by river boat and west of that by wagon train or horseback.