|Real name:||Mary Grayson|
|Relatives:||John Grayson (husband)|
Dick Grayson (son)
She was a trapeze artist from the famous Flying Graysons at Haly's Circus. She was killed by a mobster named Tony Zucco who sabotaged their circus act, which also resulted in the death of her husband, but her son survived, and he is taken in by Bruce Wayne, alias Batman, who trains the young boy to be a superhero who calls himself Robin.
Powers and Abilities
- John Grayson was created by Bill Finger and Bob Kane and first appeared in Detective Comics # 38 (April 1940).