During the American Civil War, Field enlisted in the Confederate States Army as a member of the Harvey Scouts.

[4] Scott Field moved to Calvert, Texas in 1872 and opened a private law practice.

During his term in the Texas State Senate, he was the lead sponsor of a law to ban convict labor, a practice thought of as a second incarnation of slavery, as it routinely involved rounding up minorities on false misdemeanor charges and putting them to work during harvest season.

After leaving Congress, he resumed the practice of law until 1913, when he engaged in extensive agricultural pursuits.

Soldier's Application for a Confederate Pension, #49968, State of Texas, was filed by Scott Field, Sr., July 13, 1931.

In the application, Field stated that he had enlisted from Canton, Mississippi and served from September 1863 until the end of the war.

H. Sheppard, Comptroller of Public Accounts, Austin, Texas, July 11, 1931, stating that Field was completely blind and aided by an attendant.