Architectural historian of the Renaissance and Baroque era. Millon's father, Henri Francois Millon, was an aerial photographer and his mother, Louise de Serent (Millon), was the daughter of the publisher of a French newspaper in New York. Millon graduated from Brownsville, Texas, high school in 1942. He entered Navy ROTC (then called the Navy V-12 program) in 1943 at Tulane University. He served in active duty immediately after World War II in 1946. He returned to Tulane where he received multiple bachelor's degrees in English, physics and architecture.

Architectural historian and first director, CASVA, 1979-2000. Millon was raised in Altoona, PA where his father was an aerial photographer and his mother, whose father published of a French-language newspaper in New York, was a housewife. After high school with World War II still active, he entered a US Navy ROTC program at Tulane University in 1944 assigned to active duty until1946. He married Judith Rice (Millon). After the war, he returned Tulane gaining degrees in English, Physics, and Architecture.