If you wouldn't mind my asking, do you happen to know where HoJos sourced its ice cream from? Did HoJos really make those 28 flavors or simply slap a label on some other creamery's work?
Also, if you can you should totally do a Reddit AMA. It's stories like your grandfather's I find interesting.
Thank you for sharing. Wish I could say I had a story to share, but I lived a pretty sheltered youth. I do remember it being called "Ho Joes" by everyone back then.