You are correct, I looked it up in the Holy Bible of canning books, "Ball Complete Book of Home Preserving" ISBN-10: 077880139X On page 360, "On average, it takes 3 to 3.25 lbs of tomatoes to make one quart of juice". 7 quarts is about 22lbs. So I am way off, Thank you for correcting my mistake :(
I think, not postive now that my brain received a massive jolt. The number 56 is the average weight of a bushel of tomatoes. In the Bible The number is 53 for the average, Page 427.
It's not often I get a strong head smack, it hurts. Kneeling in penitence: Repeating: "I am not stupid" over and over until the pain goes away :(