Yankee Doodle Jones and Dandy

Real Names: Unknown
First Appearance: Yankee Comics #1 (1941)
Original Publisher: Harry A. Chesler
Created by: Lou Fine

Golden Age Origin: 

Dandy was the unnamed son of the scientist who created Yankee Doodle Jones. He watched the android's creation from the sidelines. When his father injected the artificial man secret formula that gave him heightened strength, speed,and near-invulnerability, the young boy wished that he too would receive an injection, but moments later, a group of Nazi's agents broke in and mortally wounded the boy's father.

Dandy becomes Yankee Doodle Dandy

Yankee Doodle Jones fought the Nazis, and the scientist's son was eager to help as well. He injected himself with the secret fluid. While they stopped the Nazis, Dandy's father died, but with his last words he told his son and his creation to use their powers to defend America, giving them their respective codenames.

The newly minted superhero duo proceeded to lounge around and do nothing until they were approached by Uncle Sam, who ordered them to investigate the mysterious deaths of his agents. The search lead them to two Nazi agents - the costumed Leader and the Hag, who used her voodoo-like powers to choke the agents from a distance. Yankee Doodle Jones and Dandy were able to stop the Nazi agents, killing them both in the process.

Golden Age Appearances:

Yankee Comics #1-4

Bulls Eye Comics #11 (Reprint)

Dynamite Comics #8 (Reprint)

Hello Pal Comics #1