Major Thomas C. Henderson (also known as Tom C. Henderson) was on board of B-17E Serial 41-9051 on a navigational training exercise to Turnhouse, Edinburgh, Scotland as final destination on 14 Sept 43. Piloted by Captain William C. Anderson, CO of 813th BS, the B-17 somehow flew off course by some 50 miles and crashed into Skiddaw Mountain, near Keswick in Cumbria, United Kingdom. All 10 aboard were killed. Major Henderson was listed as passenger on this plane.

He had married Marjorie Hall in February 1941 and they had a son, Thomas Caldwell Henderson III, born 13 February 1943 (passed away at 64 in September 2007)