He left a wife and son at his passing. He was first interred in the Catholic mission in Tungchen, China. He was later reinterred in Fort Worth. He is also memorialized in several ways, on the Medal of Honor Monument at the Texas State Cemetery in Austin, a plaque at the Corps of Cadets Center and a display at the student center at Texas A&M University, Carswell Avenues at Elmendorf AFB, AK and Lackland AFB, TX, and Fort Worth AAF was renamed Carswell AFB in his honor Feb 27, 1948.

His Medal of Honor citation:

Awarded for actions during World War II

The President of the United States of America, in the name of Congress, takes pride in presenting the Medal of Honor (Posthumously) to Major (Air Corps) Horace Seaver Carswell, Jr. (ASN: 0-399757), United States Army Air Forces, for extraordinary heroism in action as Pilot of a B-24 bomber from the 374th Bombardment Squadron, 308th Bombardment Group (H), Fourteenth Air Force, in a one-plane strike against a Japanese convoy in the South China Sea on the night of 26 October 1944. Taking the enemy force of twelve ships escorted by at least two destroyers by surprise, he made one bombing run at 600 feet, scoring a near miss on one warship and escaping without drawing fire. He circled and, fully realizing that the convoy was thoroughly alerted and would meet his next attack with a barrage of anti-aircraft fire, began a second low-level run which culminated in two direct hits on a large tanker. A hail of steel from Japanese guns riddled the bomber, knocking out two engines, damaging a third, crippling the hydraulic system, puncturing one gasoline tank, ripping uncounted holes in the aircraft, and wounding the copilot; but by magnificent display of flying skill, Major Carswell controlled the plane's plunge toward the sea and carefully forced it into a halting climb in the direction of the China shore. On reaching land, where it would have been possible to abandon the staggering bomber, one of the crew discovered that his parachute had been ripped by flak and rendered useless; the pilot, hoping to cross mountainous terrain and reach a base, continued onward until the third engine failed. He ordered the crew to bail out while he struggled to maintain altitude, and, refusing to save himself, chose to remain with his comrade and attempt a crash landing. He died when the airplane struck a mountainside and burned. With consummate gallantry and intrepidity, Major Carswell gave his life in a supreme effort to save all members of his crew. His sacrifice. far beyond that required of him, was in keeping with the traditional bravery of America's war heroes.

General Orders: War Department, General Orders No. 14 (February 4, 1946)

Action Date: October 26, 1944

Service: Army Air Forces

Rank: Major

Company: 374th Bombardment Squadron

Regiment: 308th Bombardment Group (H)

Division: 14th Air Force

Carswell, Horace Seaver, Jr., Maj