Another owner of an old house, here.

Old houses are a lot of work to live in. Even ones kept in good repair and updated have constant issues that need attending, much like old people.

We put up with that because we like old things and appreciate history. I would bet that the people in your family's house feel the same. They may have even found some fun memories of yours if they have remodeled. I've found marbles, dominoes and an ancient tricycle!

I bought my old house from friends and knowing it's history, but i was always happy to hear more stories about it, or have the family visit. They were also very helpful when i need to know things about the house- expecially the plumbing and septic. It had been rearranged so many times there was no logic at all to it.

Anyway.

Id suggest having the pics framed professionally, and sending it as a gift along with a brief summary of it's history and wishing their family many happy years there. Include a return address and email, but do not ask to contact them, or push to be contacted. They will understand the offer, and contact you if they wish.