Julian N. Parker was a resident of Mansfield on August 11, 1862 when he enlisted as a Sergeant in Co. D of the 21st Regiment Connecticut Volunteer Infantry. He was appointed Hospital Steward on June 30, 1863 and he was mustered out June 16, 1865.

The descriptive muster roll of the 21st Regiment Connecticut Volunteer Infantry lists his age as 23 and his occupation as student.  He is described as 5’ 10” tall with a fair complexion and blue eyes and dark hair.  His marital status is single. 

He was born July 3, 1839 in Mansfield to Charles and Ann/Anna (Utley) Parker. In the 1860 U.S. census in Mansfield, he is a 21 year old teacher in the household of Charles Parker. One brother in the household, John A. Parker, enlisted in Co. D of the 21st Regiment Connecticut Volunteer Infantry on the same day as Julian N. Parker. 

After the Civil War, he studied medicine with Dr. Norman Brigham in Mansfield and then continued his studies at Yale Medical School, graduating as a physician in 1867.  

He married Caroline Shepard of New Haven in 1868; they had no children. 

After practicing medicine in Mansfield for two years, he moved to South Manchester, where he had a medical practice for more than thirty years. Julian Parker was a surgeon with the First Regiment of the Connecticut National Guard and went with them to the 1876 Centennial celebration in Philadelphia. He was a member of the Drake Post of the G.A.R (Grand Army of the Republic) in South Manchester and served as their surgeon for many years. 

On July 26, 1890, he applied for an invalid pension, No. 844,420 that was granted under certificate No. 857,429. His widow applied for a pension on April 30, 1908.

Julian N. Parker died on February 7, 1901 in Manchester and is buried at the East Cemetery in Manchester, Connecticut.