It's a fundraiser that loops back to the Red River Valley Fighter Pilots Association for his wife and two girls, who will both be in college in a few years. The link has been shared by pretty much all of the Barnestormers on Facebook and I think it was started by the 131 FS SQ/CC. It'll go to a great cause.
Also, Moose was a really awesome guy in every aspect of life. I really looked up to him and I only knew him for about 6 months. I can't imagine what his wife and girls are going through. Godspeed, Sir.