The 55th had 1,324 enrolments. Nine men died and 131 were discharged or transferred out before campaigning began in the Spring of 1862 (inclusive of the 86 men of Company 'B' who left the regiment on 28 April 1862). The rest, 1,181 men, saw active service. Its highest present for duty strength was 890, for most of war it was much lower.

Image 1 shows the position at the end of the war. It gives the fate of all of the men who joined the 55th between the formation of the regiment until one-week before the end of the war (April 2 1865). These statistics were compiled from the Regiment's service records.