Charles M. Duren of Bangor, Maine, enlisted in 1861 in the 24th Massachusetts Regiment and saw much service, including the battles of New Bern, the noteworthy attack on Fort Wagner, and others in that area. He was promoted to 2nd. Lieutenant (1863) in the 54th Massachusetts Volunteer Infantry (a Negro regiment with white officers) and commanded Company D of that regiment in the battle of Olustee, the only major engagement of the War in Florida. This brought a promotion to 1st. Lieutenant. Some time later he was shot in the knee and thrown from his horse, breaking his leg. He was honorably discharged for disabilities in 1865. He never fully recovered and died in 1869 at the age of twenty-seven.
Duren, C. M.
"The Occupation of Jacksonville, 1864 And the Battle of Olustee, Letters of Lt. C. M. Duren,"
Florida Historical Quarterly: Vol. 32
, Article 4.
Available at: https://stars.library.ucf.edu/fhq/vol32/iss4/4