▁ 3 , ▁ 1 8 6 1 . ▁ ▁It ▁was ▁mainly ▁made ▁up ▁of ▁Mc Le an ▁County ▁volunte ers . ▁ ▁One ▁batt alion ▁of ▁the ▁ 3 3 rd ▁fought ▁throughout ▁the ▁Mississippi ▁Valley , ▁distingu ishing ▁itself ▁at ▁the ▁fall ▁of ▁V icks burg , ▁where ▁ 1 1 ▁of ▁its ▁ 3 2 ▁members ▁died ▁in ▁the ▁battle . ▁The ▁ 3 3 rd ▁Illinois ▁was ▁station ed ▁in ▁Indian ola ▁Texas ▁on ▁December ▁ 1 , ▁ 1 8 6 3 ▁after ▁the ▁Battle ▁of ▁Fort ▁Es per anza ▁and ▁stayed ▁until ▁being ▁returned ▁home ▁on ▁veter ans ' ▁f url ough ▁on ▁January ▁ 2 8 , ▁ 1 8 6 4 ▁when ▁those ▁who ▁did ▁not ▁re en list ▁were ▁transfer f ed ▁to ▁the ▁ 9 9 th ▁Illinois ▁Vol unte er ▁Infantry ▁Regiment . ▁ ▁The ▁regiment ▁was ▁must ered ▁out ▁on ▁November ▁ 2 4 , ▁ 1 8 6 5 ; ▁and ▁finally ▁dis charg ed ▁December ▁ 6 , ▁ 1 8 6 5 , ▁at ▁Chicago . ▁ ▁Total ▁strength ▁and ▁cas ual ties ▁The ▁regiment ▁suffered ▁the ▁loss ▁of ▁two ▁officers ▁and ▁ 5 6 ▁en list ed ▁men ▁who ▁were ▁killed ▁in ▁action ▁or ▁who ▁died ▁of ▁their ▁w ounds ; ▁and ▁one ▁officer ▁and ▁ 2 5 0 ▁en list ed ▁men ▁who ▁died ▁of ▁disease , ▁giving ▁a ▁total ▁of ▁ 3 0 9 ▁war ▁fatal ities . ▁ ▁Command ers ▁ ▁B vt