1st Indiana Heavy Artillery Regiment
military unit
1st Regiment Indiana Heavy Artillery was a heavy artillery regiment that served in the Union Army during the American Civil War. It was nicknamed the "Jackass Regiment". Before being converted into an artillery unit in 1863, it served as the 21st Regiment, Indiana Volunteer Infantry.
Service
The 1st Indiana Heavy Artillery was organized in Indianapolis, Indiana, July 24, 1861, as the 21st Indiana Infantry under the command of Colonel James Winning McMillan. The regiment was converted to heavy artillery in February 1863.
The regiment was attached to Dix's Division, Baltimore, Maryland, to February 1862. Butler's New Orleans Expedition to March 1862. 2nd Brigade, Department of the Gulf, to October 1862. Independent Command, Department of the Gulf, to January 1863. Unattached, 1st Division, XIX Corps, Department of the Gulf, to February 1863.
This brief starts where responsible research should: with the source description of “1st Indiana Heavy Artillery Regiment” as military unit. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the general reference register because the source frames it as military unit. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jan 30, 2026. The linked authority identifier is Q4596560. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1863, 1861 and 1862.
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This entry incorporates text from “1st Indiana Heavy Artillery Regiment” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.