Chauncey Child Dean was born on May 17, 1843, in Chelsea, Massachusetts, to Samuel and Adelaide Dean. By 1860, he was living in Roxbury, Massachusetts. He worked as a musician in the early 1860s. On February 20, 1862, he received a commission as a 2^nd lieutenant in Company I of the 30^th Massachusetts Infantry. In the spring of 1864, he was promoted to captain in the 93^rd USCT Infantry. Army officials transferred him to the 81^st USCT Infantry on July 10, 1865, and he mustered out on November 30, 1866. He later received a brevet promotion to major.

 

He settled in Boston, Massachusetts, after the war. He married Emma H. Quindley on June 10, 1865, and they had at least two children: Lewis, born around 1865; and Grace, born around 1868. By 1870, he was serving as deputy state constable. A decade later, in was working in the Boston custom house. He died of Bright’s disease in Boston on May 18, 1889.

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