We were a farm family, and both sides of the family gardened and raised and preserved their off-season food. Mom got a tomato from Mrs. Shoup that her family had brought over from Germany, and they called it a big Italian. The flavor was the best we ever ate but the tomato was late and gnarly. We raised our own pork too and were big BLT consumers. Mom wanted a tomato that was large, smooth and early for our BLT's sandwiches. She started collecting seed from the earliest and smoothest and over a number of years, she developed a smooth large tomato that only one slice for a sandwich. I'm 65 years old now and started helping clean seed and save them when I was very young. I know when I went to college, they had been smooth for some time by then and Mom had started her greenhouse business during my Jr High years, and this was her best seller. Mine are smoother than the picture in the one on this website, but I still save seed just as I was taught as a child. My seed patch is more than 1,000 feet from all other tomatoes with buildings and obstructions in between.