Answer:
Union: Gen. Philip Kearny
Confederate: Nicola Marschall
Explanation:
Corps badges were originally worn by Union soldiers on the top of their army forage cap (kepi), left side of the hat, or over their left breast. The idea is attributed to Gen. Philip Kearny who ordered his men to sew a two-inch square of red cloth on their hats to avoid confusion on the battlefield.
The new uniforms were designed by Nicola Marschall, a German-American artist who also designed the original Confederate flag. He was heavily influenced by the mid-1800s uniforms of the Austrian and French Armies.
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