Corpsbadges in theAmerican Civil War were originally worn by soldiers of theUnion Army on the top of their army forage cap (kepi), left side of the hat, or over their left breast. The idea is attributed toMaj. Gen.Philip Kearny, who ordered the men in his division to sew a two-inch square of red cloth on their hats to avoid confusion on the battlefield. This idea was adopted by Maj. Gen.Joseph Hooker after he assumed command of theArmy of the Potomac, so any soldier could be identified at a distance.

Maj. Gen.Daniel Butterfield, Hooker's chief of staff, was assigned the task of designing a distinctive shape for each corps badge. Butterfield also designated that eachdivision in the corps should have a variation of the corps badge in a different color. Division badges were colored as follows:

1. Red — First division of corps
2. White — Second division of corps
3. Blue — Third division of corps

These were used in the United States' Army of the Potomac. For the most part, these rules were adopted by other Union Armies; however, it was not universal. For example, the XIII Corps never adopted a badge, and the XIX Corps had the first division wear a red badge, the second division wear a blue badge, and the third division wear white.

For Army corps that had more than three divisions, the standardization was lost:^[1]

1. Green — Fourth division ofII,III,VI,IX, andXX Corps
2. Yellow — Fourth division ofXV Corps (reportedly Orange was also used for a 5th Division Badge)
3. Multicolor — Headquarters or artillery elements (certain corps)

The badges for enlisted men were cut from colored cloth, while officer's badges were privately made and of a higher quality. Metallic badges were often made by jewelers and were personalized for the user. The badges eventually became part of the Army regulations and a great source of regimental pride.^[2]

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  Union Army, I Corps, 1st Division Badge,
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  Union Army, II Corps, 3rd Division Badge
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  Union Army, III Corps, 3rd Division Badge
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  Union Army, IV Corps, 3rd Division Badge
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  Union Army, V Corps, 1st Division Badge
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  Union Army, VI Corps, 1st Division Badge
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  Union Army, VII Corps, 3rd Division Badge
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  Union Army, VIII Corps, 3rd Division Badge
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  Union Army, IX Corps, 1st Division Badge
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  Union Army, X Corps, 1st Division Badge
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  Union Army, XI Corps, 1st Division Badge
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  Union Army, XII Corps, 1st Division Badge
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  Union Army, XIV Corps, 3rd Division Badge
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  Union Army, XV Corps, 3rd Division Badge
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  Union Army, XVI Corps, 1st Division Badge
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  Union Army, XVII Corps, 1st Division Badge
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  Union Army, XVIII Corps, 3rd Division Badge
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  Union Army, XIX Corps, 1st Division Badge
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  Union Army, XX Corps, 1st Division Badge
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  Union Army, XXII Corps, 3rd Division Badge
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  Union Army, XXIII Corps, 3rd Division Badge
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  Union Army, XXIV Corps, 1st Division Badge
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  Union Army, XXV Corps, 1st Division Badge

1st Division	2nd Division	3rd Division

1st Division	2nd Division	3rd Division
Corps Hqr's	Artillery Brigade	Quartermaster
4th Division (rarely used)

1st Division	2nd Division	3rd Division
4th Division (rarely used)

1st Division	2nd Division	3rd Division

1st Division	2nd Division	3rd Division

1st Division	2nd Division	3rd Division
4th Division

1st Division	2nd Division	3rd Division

1st Division	2nd Division	3rd Division

1st Division	2nd Division	3rd Division
4th Division

1st Division	2nd Division	3rd Division

1st Division	2nd Division	3rd Division

1st Division	2nd Division	3rd Division

1st Division	2nd Division	3rd Division

1st Division	2nd Division	3rd Division

1st Division	2nd Division	3rd Division
4th Division	Headquarters

1st Division	2nd Division	3rd Division

1st Division	2nd Division	3rd Division

1st Division	2nd Division	3rd Division

1st Division	2nd Division	3rd Division

1st Division	2nd Division	3rd Division
4th Division|

{Note:XX Corps Badges same as the old XII Corps; the XX Corps was consolidated from the XI and XII Corps}

1st Division	2nd Division	3rd Division
Headquarters

1st Division	2nd Division	3rd Division

1st Division	2nd Division	3rd Division

1st Division	2nd Division	3rd Division

1st Division	2nd Division	3rd Division

I Corps, Army of the Potomac

• Major organizations of the Union Army
• Kearny Cross

Wikimedia Commons has media related toUnion Army corps insignia.

• Corps Badges "Emblems Of Pride"
• Designs of Civil War Corps Badges
• Union Corps BadgesArchived 2006-02-08 at theWayback Machine

• Union army corps
• United States military badges

• Articles with short description
• Short description matches Wikidata
• Commons link from Wikidata
• Webarchive template wayback links