I asked my Dad about the plane number, but he didn't know it off the top of his head. If we find the log books or another photo with it I will do some of the research. I did find out that my grandfather flew two different C47s. One was the gunship pictured above and the other was a standard cargo version of the C47 that he flew dropping leaflets during Vietnam. Apparently a photo was taken of him dropping the leaflets, that was published in an Airforce magazine during that time frame.
Here is a photo of him while flying his B47 for a Boing photo shoot.

Apparently this huge photo hung in the lobby of Boing's headquarters for a number of years and then was given to my grandfather when Boing no longer wanted it. To give you an idea of how large it is, the framed photo of the two people in the bottom center of the picture measures 8"x11"
If I find anymore interesting photos, I will post them when I get the chance.