Can a short story be a short story if it’s a nonfiction piece? In short—no. In reality—it depends.
Short stories have traditionally been considered a fiction genre. They can be about anything as long as they are about one thing—and they’re short.
So, technically, if you identify your stories as nonfiction, and they follow a story line using elements of fiction, you have written creative nonfiction or short nonfiction, but not a short stories.