Littell, Isaac William was born on December 5, 1857 in Elizabeth, New Jersey, United States. Son of Isaac William and Elizabeth (Ball) Littell.
Student Stevens Institute Technology, 2 years. Graduated from the United States Military Academy, 1883.
Captain Gregory Barrett, United States of America, January 22, 1885. Commissioned Second lieutenant 10th Infantry, June 13, 1883. Promoted through grades to brigadier general Question Manager Corps, October 9, 1917.
Retired, February 19, 1919. In charge of construction of N.A. cantonments and national guard camps, 1917. Secretary and treasurer United States Soldiers’ Home, Washington, resigned 1922.