While there are many military service personnel that I am unaware of, these are the ones that I know of from my research of Southwest Louisiana families.
Doxey, James Andrew "Sonny Boy". (Grand Chenier). He was killed in action during the Normandy invasion. He is the son of James U. Doxey and Matilda Sturlese and the grandson of Lucien Sturlese and Phelonia Miller. Phelonia is the grand daughter of Michel Miller and Hiacinthe Lejeune.
Buried: https://www.findagrave.com/memorial/43726758/james-a_-doxey
Ricard, Henry. T Sgt. US Army. Killed in action while serving as Flight Engr. on a B-24. He was shot down on June 18, 1944 while delivering supplies to the French underground. He is buried in Brittany American Cemetery and Memorial, Saint-James, Normandy, France. He is first cousin to Malcolm L Miller. Henry is his mother's nephew. Malcolm's mother is Bertha Ricard. She married Octave Miller, son of Jean Pierre Miller and Caroline Guillory.
Buried: https://www.findagrave.com/memorial/56350698
Gianelloni, Vivian Joseph. (Baton Rouge). U.S. Army. Major. He served with the 526th Armored Infantry Battalion and was the commanding officer of the security company for Gen. Omar Bradley's 12th Army Group headquarters from its organization in Normandy until VE Day. He married Jeanette Catherine Singleton, the daughter of John C. Singleton and Mary Elizabeth Miller, the 2nd great granddaughter of Frederic Miller and Victoria Mayer.
Buried: https://www.findagrave.com/memorial/20636327