in photos how can I select many images to be tagged for the same person?

If you want the naming to be in the same format as the automatically named photographs, so that they show up in the people folder, then you can't. That is becasue it is not images that are named, but faces within the images. A photo can have more than one image/face.

What you can do is tag the selected images with a keyword. That key word can be a name. When the photos are selected, open the info pane (CMD-I) and type in the keyword(s) you want.

If you use the same names as keywords, as are used in the people album, then when you search for that name, it will show automatically recognised photos and photos with that keyword.

You can name several images of the same person as once, if you give photos time to finish the automatic face detection. Photos is automatically grouping the faces it is recognising as the same person. You will see them as stacks of faces in the People album. To use them, do it this way.

• Enable to overlay of faces circles in the View Menu "View > Show Faces". Now you will see, which faces Photos could recognise automatically by the circle around the face, when you view the photo enlarge.
• Do not directly type the name into the name field below the circle, but swipe up to the Details section and click the thumbnail with the face below the photo. This will open the People album for this person. Type the name into the name field of the album, if it is still unnamed.
• If it is available, use the command "confirm additional faces" at the bottom of the album. Photos will then show you all photos where it recognised the same person and you can name them summarily.

Before you add and name individually faces, make sure, that you confirmed all additional faces Photos has already recognised. This will save you a lot of work. I am always waiting several days after importing new photos to give Photos time to recognise the people automatically, before I name them individually. It should only be necessary for very small faces or hard to recognise faces.

Hello bs98909,

Thank you for using Apple Support Communities!

We understand from your post that you would like to tag multiple photos of the same people while using Photos on Mac. This article has information on how you can identify photos of people in Photos on your Mac which you may find helpful:

Find and identify photos of people using Photos on Mac - Apple Support

Best Regards.

bs98909,

Try selecting all the photos you want to change by selecting one, then pressing and holding the Command key while clicking on the other photos you want to update. Once you have the photos selected then try tagging and labeling them.

Select items on your Mac screen - Apple Support

Take Care.