Wonderful to find such treasures. Only a few weeks ago I was looking at 50 years old pics together with my mother and we found something like this, too. I was holding a few days old kitten in my hands when I was about 6 years old.
My sister says the cat's name was Tabby. A color pic shows he/she looked amazingly like Storm, and was very much in love with the family dachshund, Berbily.