Bob Crosby

 George Robert Crosby (August 23, 1913 – March 9, 1993) was an American Dixieland bandleader and vocalist, best known for his group Crosby and The Bob Cats. He was the younger brother of Bing Crosby.

Fallout 3
The songs "Happy Times" and "Way Back Home" with The Bob Cats, performed by Crosby, are used in Fallout 3 and played on Galaxy News Radio.

In the Fallout 3 E3 trailer, his song "Dear Hearts and Gentle People" was used, though it does not appear in the game.

Fallout 4
"Happy Times" and "Way Back Home" reappear in Fallout 4 on Diamond City Radio, with the addition of "Dear Hearts and Gentle People."

Fallout 76
"Dear Hearts and Gentle People" reappears on Appalachia Radio in Fallout 76.