We intersperse them with antique paintings or prints, or wall clocks for a display that, as you can see, almost fills every inch of space!
They didn't come to us in frames (except one or two). I buy antique frames which my husband repairs if he needs to, then we have the original photos enlarged to fit. We choose a mat from the local framing shop and have it put together. Then I write on the back the details of the person, or family group, in the photo. It's our way of cherishing our ancestors, preserving family photographs, and ensuring that information on them carries on to the next generation who will welcome the photos into their protection.
Here are a few closeups of some of our ancestor photos on the wall. It was challenging to take photos due to glare from windows and height of some. I hope you are preserving and enjoying your family treasures.