How to email photos with descriptions?

Mary you would likely be better off attaching the picture and then within the email message itself explain who the people are;

for instance, " Family reunion 1945, left to right, Aunt Mary, Uncle John, Aunt Annie, Uncle Bob"

You could go to all the trouble of printing it ON the picture itself using your photo program but very often that just doesn't have the desired results.

You say these are old photos so I presume you'll have to scan them and then save them as .jpg's. Those are the easiest to attach and then the written descriptions within the email message would be what I personally would want to do because it is very simple to do that.

Either mail would work well for you, it is whatever you would feel more comfortable with using. I would definitely ATTACH the pictures and NOT insert them within the mail because often people receiving mails with inserted pictures then cannot see them and if she wanted to print them that sometimes is difficult also because she'd likely have to print the whole email.  Attaching them would also allow her to save them to her computer and print them out if she wants to do that.

I also think I would recommend that you send them one at a time, meaning one picture in one email and you might put a "mini-description" of that one picture in the subject line, like "Family reunion 1945". Attach the picture with the left to right listing in your email message. This way you can be sure she likely will be able to print each on if she wishes and you can be sure she should be able to receive them too.

This started out as sending them to a niece and now it appears it is more people. If they want to print them not attaching and inserting could possibly present a problem because often an inserted picture will not print. All you get is the email with a blank where the picture should be. You of course can do what you wish. If they only want to see them and not print them then inserting them within the email "might" work, I cannot guarantee it.

It is super easy to open an attachment, double click and it is open, absolutely nothing difficult about it.  Then they have the option of printing, saving to the computer whichever they would choose.