Her confusion is understandable (she was ten) but her father's account here is, let's say, questionable. He testified to this (the building he is referring to is the TSBD):
Mr. LIEBELER. Did you actually observe the President when he was hit in head?
Mr. WILLIS. No, sir; I did not. I couldn't see that well, and I was more concerned about the shots coming from that building. The minute the third shot was fired, I screamed, hoping the policeman would hear me, to ring that building because it had to come from there. Being directly across the street from the building, made it much more clear to those standing there than the people who were on the side of the street where the building was.
Mr. LIEBELER. So you thought you had picked out a particular building at the time when you heard shots?
Mr. WILLIS. Absolutely.
Mr. LIEBELER. What building was that?
Mr. WILLIS. The Texas School Book Depository Building.
Mr. LIEBELER. You were pretty sure?
Mr. WILLIS. I felt certain. I even looked for smoke, and I knew it came from high up.
In the article he says he saw the president get hit in the head, that "it blew up like a halo. The brains and matter went to the left and rear." So he goes from not seeing the hit to seeing it hit and seeing the matter? It's another example for me (it's not a short list either) of how what these people read or heard affected, consciously or not, their memories. How else could Willis go from not seeing anything hitting JFK to this description? Repressed memory?
https://www.jfk-assassination.net/russ/testimony/willis_p.htm