This is a very simple script to rename generic pronouns in files to proper names after using auto captioning. This script does not create copies. It renames the files in place.
By default, it will replace "a man", "a woman", and "a person" with your supplied proper name. This works well for single subject without tweaking.
You can chain together the auto_caption.py and file_rename.py to help deal with multiple people in photos in a simple shell script (bash or windows .bat) with a bit of thinking about what you replace and using --find to specify the pronoun to replace first more specifically than all three default pronouns.