How to add another person in Photos?

Hi knighte01,

Welcome to the Apple Community, where some of us do our best to help each other.

Wondering if you want to add a different person to the array of people already in Photos,

or

maybe "name" someone in a photo who hasn't been "seen" automatically.

or

whether I don't "get" just what it is you want to do.

Apple Support have an article online that may be helpful:

Get help with the Photos app on your Mac

https://support.apple.com/en-us/HT205966

OR

There's an article about using the People album in Photos, and how it works.

https://support.apple.com/en-au/guide/photos/phtad9d981ab/mac

(Tip: If you want, scroll down to "Manually identify and name people in a photo")

Hope this helps you add another person in Photos :)