William W. Latham (1839-1913) enlisted in 2nd Connecticut Infantry in May, 1861 and served for three months with his brother James. The brothers reenlisted one year later in August 1862, in response to Connecticut Governor William Buckingham’s call for volunteers. William mustered in to Company C, 21st Connecticut Infantry as 1st Sergeant and was soon promoted to 2nd Lieutenant of Company A. He was promoted to Captain in March, 1865 and mustered out with the regiment in June.
Latham married Sarah M. Potter on December 6, 1865. He worked as a ship carpenter in Connecticut before working as an Assistant Superintendent in the United States Life-Saving Service, which worked to provide aid to shipwrecked sailors and passengers. His work took him to Portland, Oregon where he died of pneumonia in March, 1913.