James S. Rains was a senior officer of the Missouri State Guard (MSG) who fought in the Trans-Mississippi Theater of the American Civil War. Born in Tennessee, Rains moved to Missouri by 1840, and was a farmer, politician, judge, and militia officer. He also served as an Indian agent from 1845 to 1849, and participated in the California Gold Rush. He was appointed to command of the 8th Division of the MSG in May 1861, and may have commanded all MSG forces at the Battle of Carthage later that year. In August, his men were routed at the Battle of Dug Springs, an incident which became known as "Rains's Scare".
James S. Rains
The fighting at Dug Springs
The Missouri State Guard (MSG) was a military force established by the Missouri General Assembly on May 11, 1861. While not a formation of the Confederate States Army, the Missouri State Guard fought alongside Confederate troops and, at various times, served under Confederate officers.
1st Regiment of the Missouri State Guard at Camp Lewis, 1860