Years later, Robin would be reminded of this incident when Superman, Marvin White, Wendy Harris and Wonder Dog go to Blinken and Bristol Circus for a Justice League mission. Robin regrets that he couldn't come with them since he and Batman were taking an assignment in Egypt, as it would have been fun for old time's sake, since he used to travel with a circus himself.
- The Flying Graysons first appeared in Detective Comics # 38 (April 1940).
- ↑ As seen in the comic story Yesterday's Heroes! (1981).
- ↑ As seen in The Planet-Splitter (1973).
- ↑ This comic was reprinted in the Portuguese language in Super Friends # 16 (1986).
- ↑ For more information about that DC comic book, click here.