She moved in to Wayne Manor and helped Bruce and Dick to keep the house clean. She ignored their secret identities as Batman and Robin and she was also oblivious about the fact that Clark Kent, Bruce's friend, was Superman and then the costumed hero known as Nova.
- This version of Aunt Harriet, including all history and corresponding appearances, was erased from existence following the collapse of the original Multiverse in the 1985–86 Crisis on Infinite Earths limited series. Even though versions of the character may have since appeared, this information does not apply to those versions.
- 2 Appearances of Harriet Cooper (Earth-178)
- 1 Images featuring Harriet Cooper (Earth-178)
- Quotations by or about Harriet Cooper (Earth-178)
- Character Gallery: Harriet Cooper (Earth-178)