I beleive the oldest veteran i know of is Duane Zemper, I think he is 97. See his photos as a photo liason Officer with the 457th bomb group here: http://www.457thbombgroup.org/zemper/intro.html
One of Zemper’s photos, a B-17 known as “Arf and Arf” (half and half) which I intend to build one of these days! 
One of my dear friends is Sgt. Donald Burgett, A. Co. 1st B’n 506th Parachute Infantry Regiment, 101st Airborne, WWII. He parachuted into Normandy at 1:14AM on June 6, 1944 as a machine gunner/rifleman. He was 19 years old. He turned 91 2 weeks ago. He fought there for several days before being wounded. After leaving the hospital, he was dropped into Belgium as part of “Operation Market-Garden” British General Bernard Montgomery’s adacious (and failed) plan to end the war by Christmas, 1944. Don and his brothers fought there for 72 days. (was only supposed to be a few days) He then was sent to Bastogne, where he fought in the “battle of the bulge” and was again wounded. He later fought across the rhine in “operation nordwind”, through the ruhr valley, and participated in the capture of “The Eagles Nest”, Hitler’s Mountain Retreat. He was one of only ELEVEN MEN in his company (200 Men) to survive from D-day to the end of the War. Don is a dear friend of mine. I finally met him last summer, and spent 6 hours with him at his home. He showed me all sorts of things, including a belt buckle he took off a German Paratrooper he killed. He showed me the difference between a regular german soldier’s belt buckle, and a Paratrooper’s buckle. He showed me WOODEN BULLETS the Germans used in CQB (close Quarters Battle), and spoke of a friend who was hit in the cheek bone with one On D-day, whom later died, having never regained consciousness. Can you imagine being hit with one of those, and having it splinter into a zillion pieces? I had NO IDEA the Germans used wooden bullets! I am honored to Call don My friend, we speak regularly. I only wish I had kniwn him earleir in his life. I too, am saddened to think all of these great me will soon be gone. They earned the moniker “greatest generation”, in my mind. The accomplished 1,000 times more, with 1,000,000 times less. Such humble heroes.
Rudy
Don’s medals and Ribbons I took this pic at his home: 
List of awards: 

Don recently: 
Don and I on June 6, 2015, at an event in Frankenmuth, Michigan, at the “michigans own” Military museum, which I HIGHLY recommend you visit. It appears to be a smallish place from the outside, but it is really quite big inside. Has the largest collection of Medal(s) of Honor in the country, and features all michigan veterans going back from the civil war- present in the GWOT. There are also quite a few models, especially ships, some quite large, many scratch-built.
