Complex sentence: The 4th Minnesota Regiment Volunteer Infantry was mustered into Federal service by companies at Fort Snelling, Minnesota between October 4th and December 23rd, 1861, and moved to Benton Barracks, St. Louis, Missouri on April 23,1862.
Split into simpler sentences: The 4th Minnesota Regiment Volunteer Infantry was mustered in by companies at Fort Snelling, Minnesota between October 4th and December 23rd, 1861. Moved to Benton Barracks, St. Louis, Missouri on April 23,1862.