This regiment was the senior Indiana regiment of the Civil War, as it was numbered first in sequence after the five Indiana volunteer regiments which had served in the MexicanAmerican War
या युद्धाच्या आरंभी भारतीय सैन्यात एक सशस्त्र तुकडी (आर्म्ड डिव्हिजन) होती, तसेच पायदळाच्या सहा रेजिमेंट सहाय्य करीत होत्या.