William Thompson
Enlisted as a Corporal
"I" Co. MO 21st Infantry

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William Thompson
Enlisted as a Corporal
"C" Co. MO 24th Infantry

Sources used by Historical Data Systems, Inc.:
- Index to Compiled Military Service Records

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Here is the William Thompson of the 21st Missouri

William Thompson, Private, Company E, 21st Regiment Missouri Infantry, enlisted July 26, 1861 at Memphis, Mo. for 3 years, promoted to Corporal July 26, 1861, killed in action in battle of Shiloh, April 6, 1862, description on enlistment, 20 year old Farmer, dark complexion, black eyes, black hair, born in Allegany, Md.

M405: Compiled Service Records of Volunteer Union Soldiers Who Served in Organizations From the State of Missouri.

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William A. C. Thompson, Company C, 24th Regiment Missouri Infantry, filed for Invalid Class pension July 12, 1883 & March 14, 1907, Application No. 489,799, Certificate No. 667,802, he died January 7, 1929 at Peace Valley, Mo.

T289: Organization Index to Pension Files of Veterans Who Served Between 1861 and 1900.