Photo id help

[soib45]

HI all...came across this photo which is inscribed.Can someone help with the exact rank and details on the insignia ect..and possibly who it is.Thanks

http://www.divshare.com/download/26431335-6e6

 

[Kesse81]

U.S. Army Air Force Major General.
He´s wearing the badge of the First Air Force.

Not sure who he is. Maybe Major General David Norvell Walker Grant, the first Surgeon General of the U.S. Army Air Corps and U.S. Army Air Forces.