|Online Appearance?||Yes (as Great Aunt Loretta)|
- "Stop slouching!"
- Loretta telling Rodrick to stop "slouching.".
When the Heffley family celebrates Thanksgiving at their house, it always starts off with Aunt Loretta arriving two hours early. Susan Heffley makes Greg and his brother Rodrick entertain her by talking to her until the rest of the family shows up, which often causes massive fights between them.
One Christmas, she gifted Greg a pair of pants.
In The Long Haul, Greg mentions that last summer, Susan and Frank Heffley said that the family was going upstate for a few days to visit Aunt Loretta at her nursing home before revealing that they were in fact going to Disneyworld. However, Manny Heffley had a meltdown because Susan had talked up the trip so much he was excited about going, which results in the trip being postponed so that they could visit Aunt Loretta.
- Loretta appears taller in the online book. She is also nearly identical to Reba Heffley in appearance.
- She is the sister of Grandpa, Arthur Heffley, and Reba Heffley.
- It is possible that John Heffley is her son.
- Diary of a Wimpy Kid Online
- Diary of a Wimpy Kid (indirectly mentioned)
- Diary of a Wimpy Kid: Rodrick Rules
- Diary of a Wimpy Kid: The Ugly Truth
- Diary of a Wimpy Kid: The Long Haul
- Diary of a Wimpy Kid Do-It-Yourself Book (also in extended version)