World War I Letters Show Theodore Roosevelt's Unbearable Grief After the Death of his Son

Theodore Roosevelt's children were all patriots that served this nation. His youngest son, 2nd Lieutenant Quentin Roosevelt, served with the U.S. Army Air Service as an aviator with the 95th Aero Squadron in WWI. He died during a dog fight between 7 German pursuit planes and 12 American pursuit planes. Quentin's death may have contributed to his father passing away within 6 months, probably due to TR encouraging his youngest son to join the fight.
A story that was intercepted through the Spanish Embassy at that time showed that he was buried with full military honors:

“The aviator of the American Squadron, Quentin Roosevelt, in trying to break through the airzone over the Marne, met the death of a hero. A formation of seven German airplanes, while crossing the Marne, saw in the neighborhood of Dormans a group of twelve American fighting airplanes and attacked them. A lively air battle began, in which one American (Quentin) in particular persisted in attacking. The principal feature of the battle consisted in an air duel between the American and a German fighting pilot named Sergeant Greper. After a short struggle, Greper succeeded in bringing the brave American just before his gun-sights. After a few shots the plane apparently got out of his control; the American began to fall and struck the ground near the village of Chamery, about ten kilometers north of the Marne. The American flier was killed by two shots through the head. Papers in his pocket showed him to be Quentin Roosevelt, of the United States army. His effects are being taken care of in order to be sent to his relatives. He was buried by German aviators with military honors."

Another account of Quentin's funeral is this:
"Funeral services held by the Germans were witnessed on July fifteenth by Captain James E. Gee of the 110th Infantry, who had been captured and was being evacuated to the rear. Captain Gee passed through Chamery, the little village near which the plane crashed to earth. He thus describes the scene:"

“In a hollow square about the open grave were assembled approximately one thousand German soldiers, standing stiffly in regular lines. They were dressed in field gray uniforms, wore steel helmets, and carried rifles. Near the grave was a smashed plane, and beside it was a small group of officers, one of whom was speaking to the men. “I did not pass close enough to hear what he was saying; we were prisoners and did have the privilege of lingering, even for such an occasion as this. At the time I did not know who was being buried, but the guards informed me later. The funeral certainly was elaborate. I was told afterward by Germans that they paid Lieut. Roosevelt such honor not only because he was a gallant aviator, who died fighting bravely against odds, but because he was the son of Colonel Roosevelt whom they esteemed as one of the greatest Americans.”