My first horse was named Jackson. He was a dun quarterhorse gelding in his early 30's. I was six years old--this was 1990.
That means that he was born in the 1950s!
He was a very good horse for a six year old. And he taught me to ride all three gaits confidently. I never fell off of him. I believe he was also the very first horse I ever rode--he was a lesson horse that my parents bought for me after I began taking lessons.
Eventually, I needed a younger horse and my parents gave Jackson to some friends who I believe basically kept him as a pet. He lived several more years, much longer than the average horse.
I don't have any pictures but I'm sure my mom has them somewhere.