Lost found Photos

Bought a Camera at a local thrift store and it had a memory card. If anyone knows these people and could contact them, i have that memory card that was in the camera they can have the memory stick back as it may have hundreds of sentimental photos that I wouldn't want them to lose. Some of the cards have 20 photos, some have hundreds. I dont need the SD cards and they can have them. I could post more of the photos if needed.