The Junior reserves were originally organized into eight battalions of 3-4 companies each. Over the next several months all but one battalion were consolidated into three regiments consisting of the standard ten companies each.
Gaps in the state records make it difficult to determine how many were in the Junior Reserves. But surviving records indicate at least 4,000 youths and postwar records show another 400.
Older men often acted as the leadership of the Junior Reserves.